Re: RT list: Tautologies: 'A toothbrush is a toothbrush'

From: Jlsperanza@aol.com
Date: Tue Jan 20 2004 - 15:12:01 GMT

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    In a message dated 1/19/2004 11:11:07 PM Eastern Standard Time,
    frankie.roberto@ucl.ac.uk writes:

    >My full essay available here:
    >http://www.frankieroberto.com/articles/tautologies.html
    >Thoughts and further references duly welcomed!
    >Thank you for the comments and link. Interesting essay.

    At

    http://www.frankieroberto.com/articles/tautologies.html

    you write:
     
            '[t]autology' is a term borrowed from philosophy, where
            it describes an argument in which the only possible truth
            condition is 'true'. ... Tautological utterances pose a
            question for pragmatics."

    Indeed they do, if only, too, because Grice listed them within the "Group-C"
    of his 'conversational implicature'-generating utterances. I note, however, a
    feature of Grice's wording:

          "Extreme examples of a flouting
          of the first maxim of Quantity are
          provided by utterances of _patent_
          tautologies."
          (WOW, p. 33, emphasis mine. JLS).

    -- as opposed to _latent_, or -- better -- non-patent. This suggests that,
    for Grice, there is an _epistemological_ (as it were) continuum that runs from
    non-patent tautologies (it's not patently clear what he may mean here) to the
    patent ones (the two famous equitive examples he gives, wuth plural and
    singular copula respectively:

         (1) Women are women.
         (2) War is war.

    -- i.e. 'patent' must be a _doxastic_ or _epistemic_ or somehow
    'metarepresentational' (cognitive) category, I would think. Grice also implicates that
    utterances of _non-patent_ tautologies_ would be _less_ extreme examples of a
    flouting of the first maxim of Quantity?

    You also write:

    >['tautology'] describes an argument in
    >which the only possible condition is true.

    and you go on to give the example

           (3) The sun will rise tomorrow or
                 the sun will not rise tomorrow.

    -- cf. the White Knight's famous example discussed by Ramsey in _The
    Foundations of Mathematics_:

          (4) WK: Either the song will bring tears to your eyes
                       or else...
               Alice: Or else what?
               WK: Or else it _won't_, you know.

    Now, strictly, your example (3) is tautological in that it is a _theorem_ in
    *propositional* calculus -- as patently opposed to the two examples given by
    Grice which are theorems in the *predicate* calculus, rather. More to the
    point, they are theorems only in calculus -- unlike Dummett's -- which abide by the
    Law of the Excluded Middle.

    This leads us perhaps to the sometime overlapping class of _analytically
    true_ utterances (like 'a bachelorette is an unmarried female', to use an example
    from recent American television), and discussed under various guises by Grice
    -- e.g. in his examples in 'In defense of a dogma':

         (5) My neighbour's three-year old child is _not_
              an adult.

    -- as opposed to the _synthetically true:

        (6) My neighbour's three-year old child does _not_
             understand Russell's Theory of Types.

    To complicate matters, within the controversial set of 'analytically true'
    sentences there also seems to be a continuum from the doxastically non-patent to
    the doxastically patent, when it comes to so-called 'meaning postulates' --
    and as has been discussed by G. Sampson in _Making sense_ (Oxford, Clarendon)
    in connection with the variability of speakers' intuitions regarding the
    analyticity of utterances like (7) or (8):

        (7) Spring follows winter.
        (8) Christmas comes but once a year.

    Cheers,

    JL
      J L Speranza

    ----
    Refs: 
    

    Grice, H. P. 'Logic and Conversation', in Studies in the Way of Words [WOW], Harvard, 1989. --- and P. F. Strawson, 'In defense of a dogma', in WOW. Higashimori, Isao and Wilson, Deirdre, 1996. Questions on Relevance: 3.3 Tautology. UCL Working paper in Linguistics 8. http://www.phon.ucl.ac.uk/home/PUB/WPL/96papers/higashi.pdf Sampson, G. Making sense, Clarendon, 1981. Sperber, Dan. & Wilson, Dierdre, 1986. 'Postface' to Relevance: Communication and Cognition, Second ed., 1995: pp. 256-278 Sperber, D & Wilson, D, 1992. On verbal irony in Lingua 87: pp 53-76.



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