from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The quality or state of being indexical


indexical +‎ -ity (Wiktionary)


  • I suppose the cost of maintaining an amateur interest in a subject is that you end up reinventing the wheel:) Anyway, for what it is worth, here is my modest contribution to the theme of 'extended mind' (which I call 'the problem of indexical extent' after the notion of indexicality in your book):

    fragments of consciousness

  • Importantly, indexicality does not imply non-rigidity.

    Fitch's Paradox of Knowability

  • To think that this is sufficient for non-rigidity, Williamson complains, is to confuse non-rigidity for indexicality.

    Fitch's Paradox of Knowability

  • Summarizing: indexicality in English extends beyond Kaplan's list, though how far beyond is controversial.


  • Some philosophers resist claims that indexicality extends (much) beyond Kaplan's list.


  • A similar implicit indexicality is found in the theoretical specification of kind terms, which explains their rigid character also.

    Natural Kinds

  • ¦ [Its branches include the theory of how] one and the same sentence can express different meanings or propositions from context to context, owing to ambiguity or indexicality or both, ¦ speech act theory, and the theory of conversational implicature.


  • A somewhat different approach to indexicality, implemented in different ways by David Kaplan and Robert Stalnaker, has been much more influential, however.


  • But indexicality is a more general phenomenon: verb tense and aspect point to context for determining the relevant temporal point or interval.


  • How to treat indexicality is one of the main challenges to Fregean contents of utterances as Frege himself understood these.

    The Contents of Perception


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