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True and False: An Exchange

Abstract : Classically, truth and falsehood are opposite, and so are logical truth and logical falsehood. In this paper we imagine a situation in which the opposition is so pervasive in the language we use as to threaten the very possibility of telling truth from falsehood. The example exploits a suggestion of Ramsey's to the effect that negation can be expressed simply by writing the negated sentence upside down. The difference between ‘p' and ‘~~p' disappears, the principle of double negation becomes trivial, and the truth/falsehood opposition is up for grabs. Our moral is that this indeterminacy undermines the idea of inferential role semantics.
Keywords : truth falsity duality
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Contributor : Roberto Casati <>
Submitted on : Tuesday, June 25, 2002 - 2:44:29 PM
Last modification on : Friday, July 2, 2021 - 9:58:02 AM
Long-term archiving on: : Friday, September 14, 2012 - 4:41:21 PM


  • HAL Id : ijn_00000066, version 1



Roberto Casati, Achille Varzi. True and False: An Exchange. Anil Gupta André Chapuis. Circularity, Definition, and Truth, New Delhi: Indian Council of Philosophical Research, pp.365-370, 2000. ⟨ijn_00000066⟩



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