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Communication Dans Un Congrès Année : 2006

False Truths

Isidora Stojanovic

Résumé

One of the most interesting and fruitful applications of logics, classical or other, has been in supplying formal frameworks for the semantics of natural language. In this paper, I discuss the following puzzle: there seem to be arguments that are logically valid - more precisely, that are instances of the rule of universal instantiation, and yet, the utterance of the premise is intuitively true while the conclusion is false. I will discuss two strategies, developed in response to different sorts of problems, that seem immediately applicable to this puzzle. While the so-called contextualist strategy blocks the puzzle at the level of syntax, the index-shifting strategy actually embraces the apparently paradoxical claim that there are logically valid arguments with premises whose utterances are true and a conclusion whose utterance is false, but insists that different points of evaluation come into play in determining the truth values of the utterances involved in the alleged counter-instances to rules of logic.
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Dates et versions

ijn_00281045 , version 1 (20-05-2008)

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  • HAL Id : ijn_00281045 , version 1

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Isidora Stojanovic. False Truths. 5th Congress of the Spanish Society for Logic, Methodology and Philosophy of Science, Nov 2006, Granada, Spain. pp.75-80. ⟨ijn_00281045⟩
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