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<span id="openzim-page-title" class="mw-page-title-main"><span class="mw-page-title-main">Indexicality</span></span>
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<p>In <a href="Semiotics" title="Semiotics">semiotics</a>, <a href="Linguistics" title="Linguistics">linguistics</a>, <a href="Anthropology" title="Anthropology">anthropology</a>, and <a href="Philosophy_of_language" title="Philosophy of language">philosophy of language</a>, <b>indexicality</b> is the phenomenon of a <i><a href="Sign_(semiotics)" title="Sign (semiotics)">sign</a></i> pointing to (or <i>indexing</i>) some element in the <a href="Context_(language_use)" class="mw-redirect" title="Context (language use)">context</a> in which it occurs. A sign that signifies indexically is called an <b>index</b> or, in philosophy, an <b>indexical</b>.
</p><p>The modern concept originates in the <a href="Semiotic_theory_of_Charles_Sanders_Peirce" title="Semiotic theory of Charles Sanders Peirce">semiotic theory of Charles Sanders Peirce</a>, in which indexicality is one of the three fundamental sign modalities by which a sign relates to its referent (the others being <a href="Iconicity" title="Iconicity">iconicity</a> and <a href="Symbolic_anthropology" title="Symbolic anthropology">symbolism</a>).<sup id="cite_ref-peirce_1-0" class="reference"><a href="#cite_note-peirce-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> Peirce's concept has been adopted and extended by several twentieth-century academic traditions, including those of linguistic <a href="Pragmatics" title="Pragmatics">pragmatics</a>,<sup id="cite_ref-levinson_2-0" class="reference"><a href="#cite_note-levinson-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><sup class="reference nowrap"><span title="Page / location: 55–57">: 55–57 </span></sup> <a href="Linguistic_anthropology" title="Linguistic anthropology">linguistic anthropology</a>,<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> and Anglo-American philosophy of language.<sup id="cite_ref-stanford_4-0" class="reference"><a href="#cite_note-stanford-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup>
</p><p>Words and expressions in <a href="Language" title="Language">language</a> often derive some part of their referential meaning from indexicality. For example, <i>I</i> indexically refers to the entity that is speaking; <i>now</i> indexically refers to a time frame including the moment at which the word is spoken; and <i>here</i> indexically refers to a locational frame including the place where the word is spoken. Linguistic expressions that refer indexically are known as <a href="Deixis" title="Deixis">deictics</a>, which thus form a particular subclass of indexical signs, though there is some terminological variation among scholarly traditions.
</p><p>Linguistic signs may also derive nonreferential meaning from indexicality, for example when features of a speaker's <a href="Register_(sociolinguistics)" title="Register (sociolinguistics)">register</a> indexically signal their <a href="Social_class" title="Social class">social class</a>. Nonlinguistic signs may also display indexicality: for example, a <a href="Pointing" title="Pointing">pointing</a> <a href="Index_finger" title="Index finger">index finger</a> may index (without referring to) some object in the direction of the line implied by the orientation of the finger, and smoke may index the presence of a fire.
</p><p>In linguistics and philosophy of language, the study of indexicality tends to focus specifically on deixis, while in semiotics and anthropology equal attention is generally given to nonreferential indexicality, including altogether nonlinguistic indexicality.
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<div class="mw-heading mw-heading2"><h2 id="In_linguistic_pragmatics">In linguistic pragmatics</h2></div>
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</style><div role="note" class="hatnote navigation-not-searchable">Main article: <a href="Deixis" title="Deixis">Deixis</a></div>
<p>In disciplinary linguistics, indexicality is studied in the subdiscipline of <a href="Pragmatics" title="Pragmatics">pragmatics</a>. Specifically, pragmatics tends to focus on <a href="Deictics" class="mw-redirect" title="Deictics">deictics</a>—words and expressions of language that derive some part of their referential meaning from indexicality—since these are regarded as "[t]he single most obvious way in which the relationship between language and context is reflected in the structures of languages themselves"<sup id="cite_ref-levinson_2-1" class="reference"><a href="#cite_note-levinson-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><sup class="reference nowrap"><span title="Page / location: 54">: 54 </span></sup> Indeed, in linguistics the terms <i>deixis</i> and <i>indexicality</i> are often treated as synonymous, the only distinction being that the former is more common in linguistics and the latter in philosophy of language.<sup id="cite_ref-levinson_2-2" class="reference"><a href="#cite_note-levinson-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><sup class="reference nowrap"><span title="Page / location: 55">: 55 </span></sup> This usage stands in contrast with that of linguistic anthropology, which distinguishes deixis as a particular subclass of indexicality.
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<div class="mw-heading mw-heading2"><h2 id="In_linguistic_anthropology">In linguistic anthropology</h2></div>
<p>The concept of indexicality was introduced into the literature of <a href="Linguistic_anthropology" title="Linguistic anthropology">linguistic anthropology</a> by <a href="Michael_Silverstein" title="Michael Silverstein">Michael Silverstein</a> in a foundational 1976 paper, "Shifters, Linguistic Categories and Cultural Description".<sup id="cite_ref-shifters_5-0" class="reference"><a href="#cite_note-shifters-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> Silverstein draws on "the tradition extending from Peirce to <a href="Roman_Jakobson" title="Roman Jakobson">Jakobson</a>" of thought about sign phenomena to propose a comprehensive theoretical framework in which to understand the relationship between language and <a href="Culture" title="Culture">culture</a>, the object of study of modern <a href="Sociocultural_anthropology" title="Sociocultural anthropology">sociocultural anthropology</a>. This framework, while also drawing heavily on the tradition of <a href="Structural_linguistics" title="Structural linguistics">structural linguistics</a> founded by <a href="Ferdinand_de_Saussure" title="Ferdinand de Saussure">Ferdinand de Saussure</a>, rejects the other theoretical approaches known as <a href="Structuralism" title="Structuralism">structuralism</a>, which attempted to project the Saussurean method of linguistic analysis onto other realms of culture, such as kinship and marriage (see <a href="Structural_anthropology" title="Structural anthropology">structural anthropology</a>), literature (see <a href="Semiotic_literary_criticism" title="Semiotic literary criticism">semiotic literary criticism</a>), music, film and others. Silverstein claims that "[t]hat aspect of language which has traditionally been analyzed by linguistics, and has served as a model" for these other structuralisms, "is just the part that is functionally unique among the phenomena of culture." It is indexicality, not Saussurean grammar, which should be seen as the semiotic phenomenon which language has in common with the rest of culture.<sup id="cite_ref-shifters_5-1" class="reference"><a href="#cite_note-shifters-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup><sup class="reference nowrap"><span title="Page / location: 12, 20–21">: 12, 20–21 </span></sup>
</p><p>Silverstein argues that the Saussurean tradition of linguistic analysis, which includes the tradition of structural linguistics in the United States founded by <a href="Leonard_Bloomfield" title="Leonard Bloomfield">Leonard Bloomfield</a> and including the work of <a href="Noam_Chomsky" title="Noam Chomsky">Noam Chomsky</a> and contemporary <a href="Generative_grammar" title="Generative grammar">generative grammar</a>, has been limited to identifying "the contribution of elements of utterances to the <a href="Reference" title="Reference">referential</a> or denotative value of the whole", that is, the contribution made by some word, expression, or other linguistic element to the function of forming "<a href="Proposition" title="Proposition">propositions</a>—<a href="Predicate_(grammar)" title="Predicate (grammar)">predications</a> descriptive of states of affairs". This study of reference and predication yields an understanding of one aspect of the meaning of utterances, their <i>semantic meaning</i>, and the subdiscipline of linguistics dedicated to studying this kind of linguistic meaning is <a href="Semantics" title="Semantics">semantics</a>.<sup id="cite_ref-shifters_5-2" class="reference"><a href="#cite_note-shifters-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup><sup class="reference nowrap"><span title="Page / location: 14–15">: 14–15 </span></sup>
</p><p>Yet linguistic signs in contexts of use accomplish other functions than pure reference and predication—though they often do so simultaneously, as though the signs were functioning in multiple analytically distinct semiotic modalities at once. In the philosophical literature, the most widely discussed examples are those identified by <a href="J.L._Austin" class="mw-redirect" title="J.L. Austin">J.L. Austin</a> as the <a href="Performative_utterance" title="Performative utterance">performative</a> functions of speech, for instance when a speaker says to an addressee "I bet you sixpence it will rain tomorrow", and in so saying, in addition to simply making a proposition about a state of affairs, actually enters into a socially constituted type of agreement with the addressee, a <a href="Gambling" title="Gambling">wager</a>.<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> Thus, concludes Silverstein, "[t]he problem set for us when we consider the actual broader uses of language is to describe the total meaning of constituent linguistic signs, only part of which is semantic." This broader study of linguistic signs relative to their general communicative functions is <a href="Pragmatics" title="Pragmatics">pragmatics</a>, and these broader aspects of the meaning of utterances is <i>pragmatic meaning</i>. (From this point of view, semantic meaning is a special subcategory of pragmatic meaning, that aspect of meaning which contributes to the communicative function of pure reference and predication.).<sup id="cite_ref-shifters_5-3" class="reference"><a href="#cite_note-shifters-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup><sup class="reference nowrap"><span title="Page / location: 193">: 193 </span></sup>
</p><p>Silverstein introduces some components of the semiotic theory of <a href="Charles_Sanders_Peirce" title="Charles Sanders Peirce">Charles Sanders Peirce</a> as the basis for a pragmatics which, rather than assuming that reference and predication are the essential communicative functions of language with other nonreferential functions being mere addenda, instead attempts to capture the total meaning of linguistic signs in terms of all of their communicative functions. From this perspective, the Peircean category of indexicality turns out to "give the key to the pragmatic description of language."<sup id="cite_ref-shifters_5-4" class="reference"><a href="#cite_note-shifters-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup><sup class="reference nowrap"><span title="Page / location: 21">: 21 </span></sup>
</p><p>This theoretical framework became an essential presupposition of work throughout the discipline in the 1980s and remains so in the present.
</p>
<div class="mw-heading mw-heading3"><h3 id="Adaptation_of_Peircean_semiotics">Adaptation of Peircean semiotics</h3></div>
<div role="note" class="hatnote navigation-not-searchable">Main article: <a href="Semiotic_theory_of_Charles_Sanders_Peirce" title="Semiotic theory of Charles Sanders Peirce">Semiotic theory of Charles Sanders Peirce</a></div>
<p>The concept of indexicality has been greatly elaborated in the literature of linguistic anthropology since its introduction by Silverstein, but Silverstein himself adopted the term from the <a href="Semiotic_elements_and_classes_of_signs" class="mw-redirect" title="Semiotic elements and classes of signs">theory of sign phenomena</a>, or semiotics, of Charles Sanders Peirce. As an implication of his general metaphysical theory of the <a href="Categories_(Peirce)" title="Categories (Peirce)">three universal categories</a>, Peirce proposed a model of the sign as a triadic relationship: a sign is "something which stands to somebody for something in some respect or capacity."<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> Thus, more technically, a sign consists of
</p>
<ul><li>A <i>sign-vehicle</i> or <i>representamen</i>, the perceptible phenomenon which does the representing, whether audibly, visibly or in some other sensory modality;<sup id="cite_ref-commens_8-0" class="reference"><a href="#cite_note-commens-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup><sup class="reference nowrap"><span title="Page / location: "Representamen"">: "Representamen" </span></sup></li>
<li>An <i>object</i>, the entity of whatever kind, with whatever modal status (experienceable, potential, imaginary, law-like, etc.), which is represented by the sign;<sup id="cite_ref-commens_8-1" class="reference"><a href="#cite_note-commens-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup><sup class="reference nowrap"><span title="Page / location: "Object"">: "Object" </span></sup> and</li>
<li>An <i>interpretant</i>, the "idea in the mind" of the perceiving individual, which interprets the sign-vehicle <i>as</i> representing the object.<sup id="cite_ref-commens_8-2" class="reference"><a href="#cite_note-commens-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup><sup class="reference nowrap"><span title="Page / location: "Interpretant"">: "Interpretant" </span></sup></li></ul>
<p>Peirce further proposed to classify sign phenomena along three different dimensions by means of <a href="Semiotic_elements_and_classes_of_signs" class="mw-redirect" title="Semiotic elements and classes of signs">three trichotomies</a>, the second of which classifies signs into three categories according to the nature of the relationship between the sign-vehicle and the object it represents. As captioned by Silverstein, these are:
</p>
<ul><li><i>Icon</i>: a sign in which "the perceivable properties of the sign vehicle itself have isomorphism to (up to identity with) those of the entity signaled. That is, the entities are 'likenesses' in some sense."<sup id="cite_ref-shifters_5-5" class="reference"><a href="#cite_note-shifters-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup><sup class="reference nowrap"><span title="Page / location: 27">: 27 </span></sup></li>
<li><i>Index</i>: a sign in which "the occurrence of a sign vehicle token bears a connection of understood spatio-temporal contiguity to the occurrence of the entity signaled. That is, the presence of some entity is perceived to be signaled in the context of communication incorporating the sign vehicle."<sup id="cite_ref-shifters_5-6" class="reference"><a href="#cite_note-shifters-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup><sup class="reference nowrap"><span title="Page / location: 27">: 27 </span></sup></li>
<li><i>Symbol</i>: the residual class, a sign which is not related to its object by virtue of bearing some qualitative likeness to it, nor by virtue of co-occurring with it in some contextual framework. These "form the class of '<a href="Course_in_General_Linguistics#Arbitrariness" title="Course in General Linguistics">arbitrary</a>' signs traditionally spoken of as the fundamental kind of linguistic entity. Sign vehicle and entity signaled are related through the bond of a semantico-referential meaning"<sup id="cite_ref-shifters_5-7" class="reference"><a href="#cite_note-shifters-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup><sup class="reference nowrap"><span title="Page / location: 27">: 27 </span></sup> which permits them to be used to refer to any member of a whole class or category of entities.</li></ul>
<p>Silverstein observes that multiple signs may share the same sign-vehicle. For instance, as mentioned, linguistic signs as traditionally understood are symbols, and analyzed in terms of their contribution to reference and predication, since they arbitrarily denote a whole class of possible objects of reference by virtue of their semantic meanings. But in a trivial sense each linguistic sign token (word or expression spoken in an actual context of use) also functions iconically, since it is an icon of its type in the code (grammar) of the language. It also functions indexically, by indexing its symbol type, since its use in context presupposes that such a type exists in the semantico-referential grammar in use in the communicative situation (grammar is thus understood as an element of the context of communication).<sup id="cite_ref-shifters_5-8" class="reference"><a href="#cite_note-shifters-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup><sup class="reference nowrap"><span title="Page / location: 27–28">: 27–28 </span></sup>
</p><p>So icon, index and symbol are not mutually exclusive categories—indeed, Silverstein argues, they are to be understood as distinct modes of semiotic function,<sup id="cite_ref-shifters_5-9" class="reference"><a href="#cite_note-shifters-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup><sup class="reference nowrap"><span title="Page / location: 29">: 29 </span></sup> which may be overlaid on a single sign-vehicle. This entails that one sign-vehicle may function in multiple semiotic modes simultaneously. This observation is the key to understanding deixis, traditionally a difficult problem for semantic theory.
</p>
<div class="mw-heading mw-heading3"><h3 id="Referential_indexicality_(deixis)">Referential indexicality (deixis)</h3></div>
<div role="note" class="hatnote navigation-not-searchable">Main article: <a href="Deixis" title="Deixis">Deixis</a></div>
<p>In linguistic anthropology, <i>deixis</i> is defined as <a href="Reference#Semantics" title="Reference">referential</a> indexicality—that is, <a href="Morpheme" title="Morpheme">morphemes</a> or strings of morphemes, generally organized into closed <a href="Paradigm" title="Paradigm">paradigmatic</a> sets, which function to "individuate or single out objects of reference or address in terms of their relation to the current interactive context in which the utterance occurs".<sup id="cite_ref-hanks_9-0" class="reference"><a href="#cite_note-hanks-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup><sup class="reference nowrap"><span title="Page / location: 46–47">: 46–47 </span></sup> <i>Deictic</i> expressions are thus distinguished, on the one hand, from standard denotational categories such as common <a href="Noun" title="Noun">nouns</a>, which potentially refer to any member of a whole class or category of entities: these display purely semantico-referential meaning, and in the Peircean terminology are known as <i>symbols</i>. On the other hand, deixis is distinguished as a particular subclass of indexicality in general, which may be nonreferential or altogether nonlinguistic.
</p><p>In the older terminology of <a href="Otto_Jespersen" title="Otto Jespersen">Otto Jespersen</a> and <a href="Roman_Jakobson" title="Roman Jakobson">Roman Jakobson</a>, these forms were called <i>shifters</i>.<sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> Silverstein, by introducing the terminology of Peirce, was able to define them more specifically as referential indexicals.<sup id="cite_ref-shifters_5-10" class="reference"><a href="#cite_note-shifters-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup>
</p>
<div class="mw-heading mw-heading3"><h3 id="Non-referential_indexicality">Non-referential indexicality</h3></div>
<p>Non-referential indices or "pure" indices do not contribute to the semantico-referential value of a speech event yet "signal some particular value of one or more contextual variables."<sup id="cite_ref-shifters_5-11" class="reference"><a href="#cite_note-shifters-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> Non-referential indices encode certain metapragmatic elements of a speech event's context through linguistic variations. The degree of variation in non-referential indices is considerable and serves to infuse the speech event with, at times, multiple levels of <a href="Pragmatics" title="Pragmatics">pragmatic</a> "meaning".<sup id="cite_ref-indexicalorder_12-0" class="reference"><a href="#cite_note-indexicalorder-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> Of particular note are: sex/gender indices, deference indices (including the affinal taboo index), <a href="Affect_(linguistics)" title="Affect (linguistics)">affect</a> indices, as well as the phenomena of <a href="Phonological" class="mw-redirect" title="Phonological">phonological</a> <a href="Hypercorrection" title="Hypercorrection">hypercorrection</a> and social identity indexicality.
</p>
<div class="mw-heading mw-heading4"><h4 id="Indexical_order">Indexical order</h4></div>
<p>In much of the research currently conducted upon various phenomena of non-referential indexicality, there is an increased interest in not only what is called first-order indexicality, but subsequent second-order as well as "higher-order" levels of indexical meaning. First-order indexicality can be defined as the first level of pragmatic meaning that is drawn from an utterance. For example, instances of deference indexicality, such as the variation between informal <i>tu</i> and formal <i>vous</i> in French, indicate a speaker/addressee communicative relationship built upon the values of <i>power</i> and <i>solidarity</i> possessed by the interlocutors.<sup id="cite_ref-BrownGilman_13-0" class="reference"><a href="#cite_note-BrownGilman-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> When a speaker addresses somebody using the V form instead of the T form, they index (via first-order indexicality) their understanding of the need for deference to the addressee. In other words, they perceive or recognize an incongruence between their levels of power and/or solidarity and employ a more formal way of addressing that person to suit the contextual constraints of the speech event.
</p><p>Second-Order Indexicality is concerned with the connection between <a href="Linguistics" title="Linguistics">linguistic</a> variables and the metapragmatic meanings that they encode. For example, a woman is walking down the street in <a href="Manhattan" title="Manhattan">Manhattan</a> and she stops to ask somebody where a McDonald's is. He responds to her talking in a heavy "<a href="Brooklyn" title="Brooklyn">Brooklyn</a>" <a href="Accent_(sociolinguistics)" title="Accent (sociolinguistics)">accent</a>. She notices this accent and considers a set of possible personal characteristics that might be indexed by it (such as the man's intelligence, economic situation, and other non-linguistic aspects of his life). The power of language to encode these preconceived "stereotypes" based solely on accent is an example of second-order indexicality (representative of a more complex and subtle system of indexical form than that of first-order indexicality).
</p>
<div class="mw-heading mw-heading4"><h4 id="Sex/gender_indices">Sex/gender indices</h4></div>
<p>One common system of non-referential indexicality is sex/gender indices. These indices index the gender or "female/male" social status of the interlocutor. There are a multitude of linguistic variants that act to index sex and gender such as:
</p>
<ul><li><i>word-final or sentence-final particles</i>: many languages employ the <a href="Suffix" title="Suffix">suffixation</a> of word-final particles to index the gender of the speaker. These particles vary from phonological alterations such as the one explored by <a href="William_Labov" title="William Labov">William Labov</a> in his work on postvocalic /r/ employment in words that had no word final "r" (which is claimed, among other things, to index the "female" social sex status by virtue of the statistical fact that women tend to hypercorrect their speech more often than men);<sup id="cite_ref-wake_14-0" class="reference"><a href="#cite_note-wake-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> suffixation of single phonemes, such as /-s/ in Muskogean languages of the southeastern United States;<sup id="cite_ref-shifters_5-12" class="reference"><a href="#cite_note-shifters-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> or particle suffixation (such as the Japanese sentence-final use of <i>-wa</i> with rising intonation to indicate increasing affect and, via second-order indexicality, the gender of the speaker (in this case, female))<sup id="cite_ref-wake_14-1" class="reference"><a href="#cite_note-wake-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup></li>
<li><i>morphological and phonological mechanisms</i>: such as in <a href="Yana_language" title="Yana language">Yana</a>, a language where one form of all major words are spoken by sociological male to sociological male, and another form (which is constructed around phonological changes in word forms) is used for all other combination of interlocutors; or the Japanese prefix-<a href="Affixation" class="mw-redirect" title="Affixation">affixation</a> of o- to indicate politeness and, consequently, feminine social identity.<sup id="cite_ref-o_15-0" class="reference"><a href="#cite_note-o-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup></li></ul>
<p>Many instances of sex/gender indices incorporate multiple levels of indexicality (also referred to as <i>indexical order</i>).<sup id="cite_ref-indexicalorder_12-1" class="reference"><a href="#cite_note-indexicalorder-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> In fact, some, such as the prefix-affixation of o- in Japanese, demonstrate complex higher-order indexical forms. In this example, the first order indexes politeness and the second order indexes affiliation with a certain gender class. It is argued that there is an even higher level of indexical order evidenced by the fact that many jobs use the <i>o-</i> prefix to attract female applicants.<sup id="cite_ref-o_15-1" class="reference"><a href="#cite_note-o-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup> This notion of higher-order indexicality is similar to Silverstein's discussion of "<a href="#wine_talk">wine talk</a>" in that it indexes "an identity-by-visible-consumption<sup id="cite_ref-indexicalorder_12-2" class="reference"><a href="#cite_note-indexicalorder-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> [here, <i>employment</i>]" that is an inherent of a certain social register (i.e. social gender indexicality).
</p>
<div class="mw-heading mw-heading4"><h4 id="Affect_indices">Affect indices</h4></div>
<p>Affective meaning is seen as "the encoding, or indexing of speakers emotions into speech events."<sup id="cite_ref-affect_16-0" class="reference"><a href="#cite_note-affect-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup> The interlocutor of the event "decodes" these verbal messages of affect by giving "precedence to intentionality";<sup id="cite_ref-affect_16-1" class="reference"><a href="#cite_note-affect-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup> that is, by assuming that the affective form intentionally indexes emotional meaning.
</p><p>Some examples of affective forms are: <a href="Diminutives" class="mw-redirect" title="Diminutives">diminutives</a> (for example, diminutive affixes in <a href="Indo-European_languages" title="Indo-European languages">Indo-European</a> and <a href="Amerindian_language" class="mw-redirect" title="Amerindian language">Amerindian languages</a> indicate sympathy, endearment, emotional closeness, or antipathy, condescension, and emotional distance); <a href="Ideophones" class="mw-redirect" title="Ideophones">ideophones</a> and <a href="Onomatopoeias" class="mw-redirect" title="Onomatopoeias">onomatopoeias</a>; <a href="Expletive_attributive" title="Expletive attributive">expletives</a>, exclamations, <a href="Interjections" class="mw-redirect" title="Interjections">interjections</a>, curses, insults, and imprecations (said to be "dramatizations of actions or states"); <a href="Intonation_(linguistics)" title="Intonation (linguistics)">intonation</a> change (common in tone languages such as Japanese); address terms, kinship terms, and pronouns which often display clear affective dimensions (ranging from the complex address-form systems found languages such a <a href="Javanese_language" title="Javanese language">Javanese</a> to inversions of vocative kin terms found in Rural <a href="Italy" title="Italy">Italy</a>);<sup id="cite_ref-affect_16-2" class="reference"><a href="#cite_note-affect-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup> <a href="Lexicon" title="Lexicon">lexical</a> processes such as <a href="Synecdoche" title="Synecdoche">synecdoche</a> and <a href="Metonymy" title="Metonymy">metonymy</a> involved in effect meaning manipulation; certain categories of meaning like <a href="Evidentiality" title="Evidentiality">evidentiality</a>; <a href="Reduplication" title="Reduplication">reduplication</a>, <a href="Quantifiers_(linguistics)" class="mw-redirect" title="Quantifiers (linguistics)">quantifiers</a>, and comparative structures; as well as <a href="Inflectional_morphology" class="mw-redirect" title="Inflectional morphology">inflectional morphology</a>.
</p><p>Affective forms are a means by which a speaker indexes emotional states through different linguistic mechanisms. These indices become important when applied to other forms of non-referential indexicality, such as sex indices and social identity indices, because of the innate relationship between first-order indexicality and subsequent second-order (or higher) indexical forms. (See multiple indices section for Japanese example).
</p>
<div class="mw-heading mw-heading4"><h4 id="Deference_indices">Deference indices</h4></div>
<p>Deference indices encode deference from one interlocutor to another (usually representing inequalities of status, rank, age, sex, etc.).<sup id="cite_ref-shifters_5-13" class="reference"><a href="#cite_note-shifters-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> Some examples of deference indices are:
</p>
<div class="mw-heading mw-heading5"><h5 id="T/V_deference_entitlement">T/V deference entitlement</h5></div>
<p>The <a href="T%E2%80%93V_distinction" title="T–V distinction">T/V deference entitlement system</a> of <a href="European_languages" class="mw-redirect" title="European languages">European languages</a> was famously detailed by linguists Brown and Gilman.<sup id="cite_ref-BrownGilman_13-1" class="reference"><a href="#cite_note-BrownGilman-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> T/V deference entitlement is a system by which a speaker/addressee speech event is determined by perceived disparities of 'power' and 'solidarity' between interlocutors. Brown and Gilman organized the possible relationships between the speaker and the addressee into six categories:
</p>
<ol><li>Superior and solidary</li>
<li>Superior and not solidary</li>
<li>Equal and solidary</li>
<li>Equal and not solidary</li>
<li>Inferior and solidary</li>
<li>Inferior and not solidary</li></ol>
<p>The 'power semantic' indicates that the speaker in a superior position uses T and the speaker in an inferior position uses V. The 'solidarity semantic' indicates that speakers use T for close relationships and V for more formal relationships. These two principles conflict in categories 2 and 5, allowing either T or V in those cases:
</p>
<ol><li>Superior and solidary: T</li>
<li>Superior and not solidary: T/V</li>
<li>Equal and solidary: T</li>
<li>Equal and not solidary: V</li>
<li>Inferior and solidary: T/V</li>
<li>Inferior and not solidary: V</li></ol>
<p>Brown and Gilman observed that as the solidarity semantic becomes more important than the power semantic in various cultures, the proportion of T to V use in the two ambiguous categories changes accordingly.
</p><p>Silverstein comments that while exhibiting a basic level of first-order indexicality, the T/V system also employs second-order indexicality vis-à-vis 'enregistered honorification'.<sup id="cite_ref-indexicalorder_12-3" class="reference"><a href="#cite_note-indexicalorder-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> He cites that the V form can also function as an index of valued "public" register and the standards of good behavior that are entailed by use of V forms over T forms in public contexts. Therefore, people will use T/V deference <a href="Entailment" class="mw-redirect" title="Entailment">entailment</a> in 1) a first-order indexical sense that distinguishes between speaker/addressee interpersonal values of 'power' and 'solidarity' and 2) a second-order indexical sense that indexes an interlocutor's inherent "honor" or social merit in employing V forms over T forms in public contexts.
</p>
<div class="mw-heading mw-heading5"><h5 id="Japanese_honorifics">Japanese honorifics</h5></div>
<p>Japanese provides an excellent case study of <a href="Honorifics" class="mw-redirect" title="Honorifics">honorifics</a>. Honorifics in Japanese can be divided into two categories: addressee honorifics, which index deference to the addressee of the utterance; and referent honorifics, which index deference to the referent of the utterance. Cynthia Dunn claims that "almost every utterance in Japanese requires a choice between direct and distal forms of the predicate."<sup id="cite_ref-japanese_17-0" class="reference"><a href="#cite_note-japanese-17"><span class="cite-bracket">[</span>17<span class="cite-bracket">]</span></a></sup> The direct form indexes intimacy and "spontaneous self-expression" in contexts involving family and close friends. Contrarily, distal form index social contexts of a more formal, public nature such as distant acquaintances, business settings, or other formal settings.
</p><p>Japanese also contains a set of humble forms (Japanese <i>kenjōgo</i> 謙譲語) which are employed by the speaker to index their deference to someone else. There are also <a href="Suppletive" class="mw-redirect" title="Suppletive">suppletive</a> forms that can be used in lieu of regular honorific endings (for example, the subject honorific form of <span title="Hepburn transliteration"><i lang="ja-Latn">taberu</i></span><span style="font-weight: normal"> (<span title="Japanese-language text"><span lang="ja">食べる</span></span>, to eat)</span>: <span title="Hepburn transliteration"><i lang="ja-Latn">meshiagaru</i></span><span style="font-weight: normal"> (<span title="Japanese-language text"><span lang="ja">召し上がる</span></span>)</span>. Verbs that involve human subjects must choose between <i>distal</i> or <i>direct</i> forms (towards the addressee) as well as a distinguish between either no use of referent honorifics, use of subject honorific (for others), or use of humble form (for self). The Japanese model for non-referential indexicality demonstrates a very subtle and complicated system that encodes social context into almost every utterance.
</p>
<div class="mw-heading mw-heading5"><h5 id="Affinal_taboo_index">Affinal taboo index</h5></div>
<p><a href="Dyirbal_language" title="Dyirbal language">Dyirbal</a>, a language of the <a href="Cairns" title="Cairns">Cairns</a> <a href="Rain_forest" class="mw-redirect" title="Rain forest">rain forest</a> in <a href="Northern_Queensland" class="mw-redirect" title="Northern Queensland">Northern Queensland</a>, employs a system known as the affinal taboo index. Speakers of the language maintain two sets of lexical items: 1) an "everyday" or common interaction set of lexical items and 2) a "mother-in-law" set that is employed when the speaker is in the very distinct context of interaction with their mother-in-law. In this particular system of deference indices, speakers have developed an entirely separate lexicon (there are roughly four "everyday" lexical entries for every one "mother-in-law" lexical entry; 4:1) to index deference in contexts inclusive of the mother-in-law.
</p>
<div class="mw-heading mw-heading4"><h4 id="Hypercorrection_as_a_social_class_index">Hypercorrection as a social class index</h4></div>
<p><a href="Hypercorrection" title="Hypercorrection">Hypercorrection</a> is defined by Wolfram as "the use of speech form on the basis of false analogy."<sup id="cite_ref-18" class="reference"><a href="#cite_note-18"><span class="cite-bracket">[</span>18<span class="cite-bracket">]</span></a></sup> DeCamp defines hypercorrection in a more precise fashion claiming that "hypercorrection is an incorrect analogy with a form in a <a href="Prestige_(sociolinguistics)" title="Prestige (sociolinguistics)">prestige</a> dialect which the speaker has imperfectly mastered."<sup id="cite_ref-19" class="reference"><a href="#cite_note-19"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup> Many scholars argue that hypercorrection provides both an index of "social class" and an "Index of <a href="Linguistic_insecurity" title="Linguistic insecurity">Linguistic insecurity</a>". The latter index can be defined as a speaker's attempts at self-correction in areas of perceived linguistic insufficiencies which denote their lower social standing and minimal social mobility.<sup id="cite_ref-hyper_20-0" class="reference"><a href="#cite_note-hyper-20"><span class="cite-bracket">[</span>20<span class="cite-bracket">]</span></a></sup>
</p><p>Donald Winford conducted a study that measured the phonological hypercorrection in creolization of English speakers in Trinidad. He claims that the ability to use prestigious norms goes "hand-in-hand" with knowledge of stigmatization afforded to use of "lesser" phonological variants.<sup id="cite_ref-hyper_20-1" class="reference"><a href="#cite_note-hyper-20"><span class="cite-bracket">[</span>20<span class="cite-bracket">]</span></a></sup> He concluded that sociologically "lesser" individuals would try to increase the frequency of certain vowels that were frequent in the high prestige <a href="Dialect" title="Dialect">dialect</a>, but they ended up using those vowels even more than their target dialect. This hypercorrection of vowels is an example of non-referential indexicality that indexes, by virtue of innate urges forcing lower class civilians to hypercorrect phonological variants, the actual social class of the speaker. As Silverstein claims, this also conveys an "Index of <a href="Linguistic_insecurity" title="Linguistic insecurity">Linguistic insecurity</a>" in which a speaker not only indexes their actual social class (via first-order indexicality) but also the insecurities about class constraints and subsequent linguistic effects that encourage hypercorrection in the first place (an incidence of second-order indexicality).<sup id="cite_ref-indexicalorder_12-4" class="reference"><a href="#cite_note-indexicalorder-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup>
</p><p>William Labov and many others have also studied how hypercorrection in <a href="African_American_Vernacular_English" class="mw-redirect" title="African American Vernacular English">African American Vernacular English</a> demonstrates similar social class non-referential indexicality.
</p>
<div class="mw-heading mw-heading4"><h4 id="Multiple_indices_in_social_identity_indexicality">Multiple indices in social identity indexicality</h4></div>
<p>Multiple non-referential indices can be employed to index the social identity of a speaker. An example of how multiple indexes can constitute social identity is exemplified by Ochs discussion of <a href="Copula_(linguistics)" title="Copula (linguistics)">copula</a> deletion: "That Bad" in American English can index a speaker to be a child, foreigner, medical patient, or elderly person. Use of multiple non-referential indices at once (for example copula deletion and raising intonation), helps further index the social identity of the speaker as that of a child.<sup id="cite_ref-Ochs_21-0" class="reference"><a href="#cite_note-Ochs-21"><span class="cite-bracket">[</span>21<span class="cite-bracket">]</span></a></sup>
</p><p>Linguistic and non-linguistic indices are also an important ways of indexing social identity. For example, the Japanese utterance <i>-wa</i> in conjunction with raising intonation (indexical of increasing affect) by one person who "looks like a woman" and another who looks "like a man" may index different affective dispositions which, in turn, can index gender difference.<sup id="cite_ref-wake_14-2" class="reference"><a href="#cite_note-wake-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> Ochs and Schieffilen also claim that facial features, gestures, as well as other non-linguistic indices may actually help specify the general information provided by the linguistic features and augment the pragmatic meaning of the utterance.<sup id="cite_ref-22" class="reference"><a href="#cite_note-22"><span class="cite-bracket">[</span>22<span class="cite-bracket">]</span></a></sup>
</p>
<div class="mw-heading mw-heading4"><h4 id="Oinoglossia_(wine_talk)">Oinoglossia (wine talk)</h4></div>
<p>For demonstrations of higher (or rarefied) indexical orders, Michael Silverstein discusses the particularities of "life-style emblematization" or "convention-dependent-indexical iconicity" which, as he claims, is prototypical of a phenomenon he dubs "<a href="Wine" title="Wine">wine</a> talk". Professional wine critics use a certain "technical vocabulary" that are "metaphorical of prestige realms of traditional English gentlemanly <a href="Horticulture" title="Horticulture">horticulture</a>."<sup id="cite_ref-indexicalorder_12-5" class="reference"><a href="#cite_note-indexicalorder-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> Thus, a certain "lingo" is created for wine that indexically entails certain notions of prestigious social classes or genres. When "yuppies" use the lingo for wine flavors created by these critics in the <i>actual context</i> of drinking wine, Silverstein argues that they become the "well-bred, interesting (subtle, balanced, intriguing, winning, etc.) person" that is iconic of the metaphorical "fashion of speaking" employed by people of higher social registers, demanding notoriety as a result of this high level of connoisseurship.<sup id="cite_ref-indexicalorder_12-6" class="reference"><a href="#cite_note-indexicalorder-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> In other words, the wine drinker becomes a refined, gentlemanly critic and, in doing so, adopts a similar level of connoisseurship and social refinement. Silverstein defines this as an example of higher-order indexical "authorization" in which the indexical order of this "wine talk" exists in a "complex, interlocking set of institutionally formed macro-sociological interests."<sup id="cite_ref-indexicalorder_12-7" class="reference"><a href="#cite_note-indexicalorder-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> A speaker of English metaphorically transfers him- or herself into the social structure of the "wine world" that is encoded by the <i>oinoglossia</i> of elite critics using a very particular "technical" terminology.
</p><p>The use of "wine talk" or similar "fine-cheeses talk", "perfume talk", "Hegelian-dialectics talk", "particle-physics talk", "DNA-sequencing talk", "semiotics talk" etc. confers upon an individual an identity-by-visible-consumption indexical of a certain macro-sociological elite identity<sup id="cite_ref-indexicalorder_12-8" class="reference"><a href="#cite_note-indexicalorder-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> and is, as such, an instance of higher-order indexicality.
</p>
<div class="mw-heading mw-heading2"><h2 id="In_philosophy_of_language">In philosophy of language</h2></div>
<p>Philosophical work on language from the mid-20th century, such as that of <a href="J.L._Austin" class="mw-redirect" title="J.L. Austin">J.L. Austin</a> and the <a href="Ordinary_language_philosophy" title="Ordinary language philosophy">ordinary language philosophers</a>, has provided much of the originary inspiration for the study of indexicality and related issues in linguistic pragmatics (generally under the rubric of the term <i><a href="Deixis" title="Deixis">deixis</a></i>), though linguists have appropriated concepts originating in philosophical work for purposes of empirical study, rather than for more strictly philosophical purposes.
</p><p>However, indexicality has remained an issue of interest to philosophers who work on language. In contemporary <a href="Analytic_philosophy" title="Analytic philosophy">analytic philosophy</a>, the preferred nominal form of the term is <i>indexical</i> (rather than <i>index</i>), defined as "any expression whose content varies from one context of use to another ... [for instance] pronouns such as 'I', 'you', 'he', 'she', 'it', 'this', 'that', plus adverbs such as 'now', 'then', 'today', 'yesterday', 'here', and 'actually'.<sup id="cite_ref-iep_23-0" class="reference"><a href="#cite_note-iep-23"><span class="cite-bracket">[</span>23<span class="cite-bracket">]</span></a></sup> This exclusive focus on linguistic expressions represents a narrower construal than is preferred in linguistic anthropology, which regards linguistic indexicality (<i>deixis</i>) as a special subcategory of indexicality in general, which is often nonlinguistic.
</p><p>Indexicals appear to represent an exception to, and thus a challenge for, the understanding of natural language as the grammatical coding of <a href="Logic" title="Logic">logical</a> <a href="Propositions" class="mw-redirect" title="Propositions">propositions</a>; they thus "raise interesting technical challenges for logicians seeking to provide formal models of correct reasoning in natural language."<sup id="cite_ref-iep_23-1" class="reference"><a href="#cite_note-iep-23"><span class="cite-bracket">[</span>23<span class="cite-bracket">]</span></a></sup>
</p><p>The American logician <a href="David_Kaplan_(philosopher)" title="David Kaplan (philosopher)">David Kaplan</a> is regarded as having developed "[b]y far the most influential theory of the meaning and logic of indexicals".<sup id="cite_ref-iep_23-2" class="reference"><a href="#cite_note-iep-23"><span class="cite-bracket">[</span>23<span class="cite-bracket">]</span></a></sup>
</p>
<div class="mw-heading mw-heading2"><h2 id="In_philosophy_of_mind_and_metaphysics">In philosophy of mind and metaphysics</h2></div>
<p>Indexicality is also studied in relation to fundamental issues in <a href="Epistemology" title="Epistemology">epistemology</a>, <a href="Self-consciousness" title="Self-consciousness">self-consciousness</a>, and <a href="Metaphysics" title="Metaphysics">metaphysics</a>,<sup id="cite_ref-iep_23-3" class="reference"><a href="#cite_note-iep-23"><span class="cite-bracket">[</span>23<span class="cite-bracket">]</span></a></sup> for example asking whether indexical facts are <a href="Further_facts" title="Further facts">facts that do not follow from the physical facts</a>, and thus also form a link between philosophy of language and <a href="Philosophy_of_mind" title="Philosophy of mind">philosophy of mind</a>. Related ideas include <a href="Haecceity" title="Haecceity">haecceity</a> in medieval scholastic philosophy, and the <a href="Type-token_distinction" class="mw-redirect" title="Type-token distinction">type-token distinction</a>.
</p><p>Some philosophers have used indexicality as a way of defining the <a href="Philosophy_of_self" title="Philosophy of self">self</a>. The philosopher Benj Hellie coined the phrase "the <a href="Vertiginous_question" title="Vertiginous question">vertiginous question</a>" to describe the question of why, of all the subjects of experience out there, <i>this</i> one—the one corresponding to the human being referred to as Benj Hellie—is the one whose experiences are <i>live</i>. (The reader is supposed to substitute their own case for Hellie's.)<sup id="cite_ref-24" class="reference"><a href="#cite_note-24"><span class="cite-bracket">[</span>24<span class="cite-bracket">]</span></a></sup> Other philosophers have described similar phenomena. Tim S. Roberts refers to the question of why a particular organism out of all the organisms that happen to exist happens to be you as the "Even Harder Problem of Consciousness".<sup id="cite_ref-25" class="reference"><a href="#cite_note-25"><span class="cite-bracket">[</span>25<span class="cite-bracket">]</span></a></sup> <a href="Herbert_Spiegelberg" title="Herbert Spiegelberg">Herbert Spiegelberg</a> has referred to it as the "I-am-me experience", and it has been called the "Ich-Erlebnis" by German psychologists.<sup id="cite_ref-26" class="reference"><a href="#cite_note-26"><span class="cite-bracket">[</span>26<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-27" class="reference"><a href="#cite_note-27"><span class="cite-bracket">[</span>27<span class="cite-bracket">]</span></a></sup> Japanese philosopher <a href="Hitoshi_Nagai" title="Hitoshi Nagai">Hitoshi Nagai</a> has used the concept of first person perspectives as a way of defining the self, defining the self as the "one who directly experiences the consciousness of oneself".<sup id="cite_ref-28" class="reference"><a href="#cite_note-28"><span class="cite-bracket">[</span>28<span class="cite-bracket">]</span></a></sup>
</p><p>Similar ideas have been discussed by <a href="Thomas_Nagel" title="Thomas Nagel">Thomas Nagel</a> in the book <i><a href="The_View_from_Nowhere" title="The View from Nowhere">The View from Nowhere</a></i>. It contrasts passive and active points of view in how humanity interacts with the world, relying either on a subjective perspective that reflects a point of view or an objective perspective that takes a more detached perspective.<sup id="cite_ref-MindsAndBodies_29-0" class="reference"><a href="#cite_note-MindsAndBodies-29"><span class="cite-bracket">[</span>29<span class="cite-bracket">]</span></a></sup> Nagel describes the objective perspective as the "view from nowhere", one where the only valuable ideas are ones derived independently.<sup id="cite_ref-30" class="reference"><a href="#cite_note-30"><span class="cite-bracket">[</span>30<span class="cite-bracket">]</span></a></sup>
</p><p>The concept of indexicality has also been applied to the <a href="Anthropic_principle" title="Anthropic principle">anthropic principle</a>, also known as the observation selection effect. In the book <i><a href="Anthropic_Bias" title="Anthropic Bias">Anthropic Bias</a></i>, <a href="Nick_Bostrom" title="Nick Bostrom">Nick Bostrom</a> investigates how to reason when one suspects that <a href="Evidence" title="Evidence">evidence</a> is biased by "observation selection effects", in other words, when the evidence presented has been pre-filtered by the condition that there was some appropriately positioned observer to "receive" the evidence. This conundrum is sometimes called "self-locating beliefs", or "indexical information".<sup id="cite_ref-31" class="reference"><a href="#cite_note-31"><span class="cite-bracket">[</span>31<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-:0_32-0" class="reference"><a href="#cite_note-:0-32"><span class="cite-bracket">[</span>32<span class="cite-bracket">]</span></a></sup>
</p><p>The book first discusses the <a href="Fine-tuned_universe" title="Fine-tuned universe">fine-tuned universe</a> hypothesis and its possible explanations, notably considering the possibility of a <a href="Multiverse" title="Multiverse">multiverse</a>. Bostrom argues against the self-indication assumption (SIA), a term he uses to characterize some existing views, and introduces the self-sampling assumption (SSA). He later refines SSA into the strong self-sampling assumption (SSSA), which uses observer-moments instead of observers to address certain paradoxes in anthropic reasoning.<sup id="cite_ref-:1_33-0" class="reference"><a href="#cite_note-:1-33"><span class="cite-bracket">[</span>33<span class="cite-bracket">]</span></a></sup>
</p>
<div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2></div>
<ul><li><a href="Conversational_scoreboard" title="Conversational scoreboard">Conversational scoreboard</a></li>
<li><a href="Quasi-indexical" class="mw-redirect" title="Quasi-indexical">Quasi-indexical</a></li></ul>
<div class="mw-heading mw-heading2"><h2 id="References">References</h2></div>
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<li id="cite_note-30"><span class="mw-cite-backlink"><b><a href="#cite_ref-30">^</a></b></span> <span class="reference-text"><cite id="CITEREFThomas2015" class="citation book cs1">Thomas, Alan (2015). <i>Thomas Nagel</i>. Routledge. <a href="ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <bdi>978-1-317-49418-8</bdi>.</cite></span>
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<li id="cite_note-31"><span class="mw-cite-backlink"><b><a href="#cite_ref-31">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.anthropic-principle.com/?q=anthropic_bias">"Anthropic Bias | anthropic-principle.com"</a>. <i>www.anthropic-principle.com</i><span class="reference-accessdate">. Retrieved <span class="nowrap">2015-11-03</span></span>.</cite></span>
</li>
<li id="cite_note-:0-32"><span class="mw-cite-backlink"><b><a href="#cite_ref-:0_32-0">^</a></b></span> <span class="reference-text"><cite id="CITEREFBostrom2002" class="citation book cs1">Bostrom, Nick (2002). <i>Anthropic bias: observation selection effects in science and philosophy</i>. Studies in philosophy. New York: Routledge. <a href="ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <bdi>978-0-415-88394-8</bdi>.</cite></span>
</li>
<li id="cite_note-:1-33"><span class="mw-cite-backlink"><b><a href="#cite_ref-:1_33-0">^</a></b></span> <span class="reference-text"><cite id="CITEREFManson2003" class="citation web cs1">Manson, Neil (2003-02-09). <a rel="nofollow" class="external text" href="https://ndpr.nd.edu/news/23266-anthropic-bias-observation-selection-effects-in-science-and-philosophy/">"Anthropic Bias: Observation Selection Effects in Science and Philosophy"</a>. <a href="University_of_Notre_Dame" title="University of Notre Dame">University of Notre Dame</a><span class="reference-accessdate">. Retrieved <span class="nowrap">2015-11-21</span></span>.</cite></span>
</li>
</ol></div></div>
<div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2></div>
<ul><li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20090116054211/http://arche-wiki.st-and.ac.uk/~ahwiki/bin/view/Arche/IndexicalsBib">Arché Bibliography of Indexicals</a></li>
<li><a rel="nofollow" class="external text" href="http://www.helsinki.fi/science/commens/dictionary.html">Commens Dictionary of Peirce's Terms</a>, consisting in Peirce's own definitions and characterizations. See "Index".</li>
<li><a rel="nofollow" class="external text" href="http://www.iep.utm.edu/dem-indx/">Demonstratives & Indexicals</a> at <a href="Internet_Encyclopedia_of_Philosophy" title="Internet Encyclopedia of Philosophy">Internet Encyclopedia of Philosophy</a>.</li></ul>
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</style><div id="Formal_semantics_(natural_language)78" style="font-size:114%;margin:0 4em"><a href="Formal_semantics_(natural_language)" title="Formal semantics (natural language)">Formal semantics (natural language)</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Central concepts</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="Principle_of_compositionality" title="Principle of compositionality">Compositionality</a></li>
<li><a href="Denotation" title="Denotation">Denotation</a></li>
<li><a href="Linguistic_entailment" title="Linguistic entailment">Entailment</a></li>
<li><a href="Extension_(semantics)" title="Extension (semantics)">Extension</a></li>
<li><a href="Generalized_quantifier" title="Generalized quantifier">Generalized quantifier</a></li>
<li><a href="Intension" title="Intension">Intension</a></li>
<li><a href="Logical_form_(linguistics)" title="Logical form (linguistics)">Logical form</a></li>
<li><a href="Presupposition" title="Presupposition">Presupposition</a></li>
<li><a href="Proposition" title="Proposition">Proposition</a></li>
<li><a href="Reference" title="Reference">Reference</a></li>
<li><a href="Scope_(formal_semantics)" title="Scope (formal semantics)">Scope</a></li>
<li><a href="Speech_act" title="Speech act">Speech act</a></li>
<li><a href="Syntax%E2%80%93semantics_interface" title="Syntax–semantics interface">Syntax–semantics interface</a></li>
<li><a href="Truth-conditional_semantics" title="Truth-conditional semantics">Truth conditions</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Topics</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Areas</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="Anaphora_(linguistics)" title="Anaphora (linguistics)">Anaphora</a></li>
<li><a href="Ambiguity" title="Ambiguity">Ambiguity</a></li>
<li><a href="Binding_(linguistics)" title="Binding (linguistics)">Binding</a></li>
<li><a href="Conditional_sentence" title="Conditional sentence">Conditionals</a></li>
<li><a href="Definiteness" title="Definiteness">Definiteness</a></li>
<li><a href="Disjunction" class="mw-redirect" title="Disjunction">Disjunction</a></li>
<li><a href="Evidentiality" title="Evidentiality">Evidentiality</a></li>
<li><a href="Focus_(linguistics)" title="Focus (linguistics)">Focus</a></li>
<li><a href="Lexical_semantics" title="Lexical semantics">Lexical semantics</a></li>
<li><a href="Modality_(semantics)" title="Modality (semantics)">Modality</a></li>
<li><a href="Negation" title="Negation">Negation</a></li>
<li><a href="Propositional_attitudes" class="mw-redirect" title="Propositional attitudes">Propositional attitudes</a></li>
<li><a href="Tense%E2%80%93aspect%E2%80%93mood" title="Tense–aspect–mood">Tense–aspect–mood</a></li>
<li><a href="Quantifier_(logic)" title="Quantifier (logic)">Quantification</a></li>
<li><a href="Vagueness" title="Vagueness">Vagueness</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Phenomena</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="Antecedent-contained_deletion" title="Antecedent-contained deletion">Antecedent-contained deletion</a></li>
<li><a href="Cataphora" title="Cataphora">Cataphora</a></li>
<li><a href="Coercion_(linguistics)" title="Coercion (linguistics)">Coercion</a></li>
<li><a href="Conservativity" title="Conservativity">Conservativity</a></li>
<li><a href="Counterfactuals" class="mw-redirect" title="Counterfactuals">Counterfactuals</a></li>
<li><a href="Crossover_effects" title="Crossover effects">Crossover effects</a></li>
<li><a href="Cumulativity_(linguistics)" title="Cumulativity (linguistics)">Cumulativity</a></li>
<li><a href="De_dicto_and_de_re" title="De dicto and de re">De dicto and de re</a></li>
<li><a href="De_se" title="De se">De se</a></li>
<li><a href="Deontic_modality" title="Deontic modality">Deontic modality</a></li>
<li><a href="Discourse_relation" title="Discourse relation">Discourse relations</a></li>
<li><a href="Donkey_anaphora" class="mw-redirect" title="Donkey anaphora">Donkey anaphora</a></li>
<li><a href="Epistemic_modality" title="Epistemic modality">Epistemic modality</a></li>
<li><a href="Exhaustivity" title="Exhaustivity">Exhaustivity</a></li>
<li><a href="Faultless_disagreement" title="Faultless disagreement">Faultless disagreement</a></li>
<li><a href="Free_choice_inference" title="Free choice inference">Free choice inferences</a></li>
<li><a href="Givenness" title="Givenness">Givenness</a></li>
<li><a href="Homogeneity_(linguistics)" class="mw-redirect" title="Homogeneity (linguistics)">Homogeneity (linguistics)</a></li>
<li><a href="Hurford_disjunction" title="Hurford disjunction">Hurford disjunction</a></li>
<li><a href="Inalienable_possession" title="Inalienable possession">Inalienable possession</a></li>
<li><a href="Intersective_modifier" title="Intersective modifier">Intersective modification</a></li>
<li><a href="Logophoricity" title="Logophoricity">Logophoricity</a></li>
<li><a href="Mirativity" title="Mirativity">Mirativity</a></li>
<li><a href="Modal_subordination" title="Modal subordination">Modal subordination</a></li>
<li><a href="Opaque_context" title="Opaque context">Opaque contexts</a></li>
<li><a href="Performative_utterance" title="Performative utterance">Performatives</a></li>
<li><a href="Polarity_item" title="Polarity item">Polarity items</a></li>
<li><a href="Privative_adjective" title="Privative adjective">Privative adjectives</a></li>
<li><a href="Quantificational_variability_effect" title="Quantificational variability effect">Quantificational variability effect</a></li>
<li><a href="Responsive_predicate" title="Responsive predicate">Responsive predicate</a></li>
<li><a href="Rising_declarative" title="Rising declarative">Rising declaratives</a></li>
<li><a href="Scalar_implicature" title="Scalar implicature">Scalar implicature</a></li>
<li><a href="Sloppy_identity" title="Sloppy identity">Sloppy identity</a></li>
<li><a href="Subsective_modifier" title="Subsective modifier">Subsective modification</a></li>
<li><a href="Subtrigging" title="Subtrigging">Subtrigging</a></li>
<li><a href="Telicity" title="Telicity">Telicity</a></li>
<li><a href="Temperature_paradox" title="Temperature paradox">Temperature paradox</a></li>
<li><a href="Veridicality" title="Veridicality">Veridicality</a></li></ul>
</div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Formalism</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Formal systems</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="Alternative_semantics" title="Alternative semantics">Alternative semantics</a></li>
<li><a href="Categorial_grammar" title="Categorial grammar">Categorial grammar</a></li>
<li><a href="Combinatory_categorial_grammar" title="Combinatory categorial grammar">Combinatory categorial grammar</a></li>
<li><a href="Discourse_representation_theory" title="Discourse representation theory">Discourse representation theory (DRT)</a></li>
<li><a href="Dynamic_semantics" title="Dynamic semantics">Dynamic semantics</a></li>
<li><a href="Generative_grammar" title="Generative grammar">Generative grammar</a></li>
<li><a href="Glue_semantics" title="Glue semantics">Glue semantics</a></li>
<li><a href="Inquisitive_semantics" title="Inquisitive semantics">Inquisitive semantics</a></li>
<li><a href="Intensional_logic" title="Intensional logic">Intensional logic</a></li>
<li><a href="Lambda_calculus" title="Lambda calculus">Lambda calculus</a></li>
<li><a href="Mereology" title="Mereology">Mereology</a></li>
<li><a href="Montague_grammar" title="Montague grammar">Montague grammar</a></li>
<li><a href="Segmented_discourse_representation_theory" class="mw-redirect" title="Segmented discourse representation theory">Segmented discourse representation theory (SDRT)</a></li>
<li><a href="Situation_semantics" title="Situation semantics">Situation semantics</a></li>
<li><a href="Supervaluationism" title="Supervaluationism">Supervaluationism</a></li>
<li><a href="Type_theory" title="Type theory">Type theory</a></li>
<li><a href="Type_theory_with_records" title="Type theory with records">TTR</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Concepts</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="Autonomy_of_syntax" title="Autonomy of syntax">Autonomy of syntax</a></li>
<li><a href="Context_set" class="mw-redirect" title="Context set">Context set</a></li>
<li><a href="Continuation" title="Continuation">Continuation</a></li>
<li><a href="Conversational_scoreboard" title="Conversational scoreboard">Conversational scoreboard</a></li>
<li><a href="Downward_entailing" title="Downward entailing">Downward entailing</a></li>
<li><a href="Existential_closure" title="Existential closure">Existential closure</a></li>
<li><a href="Function_application" title="Function application">Function application</a></li>
<li><a href="Meaning_postulate" title="Meaning postulate">Meaning postulate</a></li>
<li><a href="Monad_(functional_programming)" title="Monad (functional programming)">Monads</a></li>
<li><a href="Plural_quantification" title="Plural quantification">Plural quantification</a></li>
<li><a href="Possible_world" title="Possible world">Possible world</a></li>
<li><a href="Quantifier_raising" class="mw-redirect" title="Quantifier raising">Quantifier raising</a></li>
<li><a href="Quantization_(linguistics)" title="Quantization (linguistics)">Quantization</a></li>
<li><a href="Question_under_discussion" title="Question under discussion">Question under discussion</a></li>
<li><a href="Semantic_parsing" title="Semantic parsing">Semantic parsing</a></li>
<li><a href="Squiggle_operator" title="Squiggle operator">Squiggle operator</a></li>
<li><a href="Strawson_entailment" title="Strawson entailment">Strawson entailment</a></li>
<li><a href="Strict_conditional" title="Strict conditional">Strict conditional</a></li>
<li><a href="Type_shifter" title="Type shifter">Type shifter</a></li>
<li><a href="Universal_grinder" title="Universal grinder">Universal grinder</a></li></ul>
</div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">See also</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="Cognitive_semantics" title="Cognitive semantics">Cognitive semantics</a></li>
<li><a href="Computational_semantics" title="Computational semantics">Computational semantics</a></li>
<li><a href="Distributional_semantics" title="Distributional semantics">Distributional semantics</a></li>
<li><a href="Formal_grammar" title="Formal grammar">Formal grammar</a></li>
<li><a href="Inferentialism" class="mw-redirect" title="Inferentialism">Inferentialism</a></li>
<li><a href="Logic_translation" title="Logic translation">Logic translation</a></li>
<li><a href="Linguistics_wars" title="Linguistics wars">Linguistics wars</a></li>
<li><a href="Philosophy_of_language" title="Philosophy of language">Philosophy of language</a></li>
<li><a href="Pragmatics" title="Pragmatics">Pragmatics</a></li>
<li><a href="Semantics_of_logic" title="Semantics of logic">Semantics of logic</a></li></ul>
</div></td></tr></tbody></table></div>
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