Solving categorical syllogisms with singular premises

Abstract : We elaborate on the approach to syllogistic reasoning based on "case identification" (Stenning & Oberlander, 1995; Stenning & Yule, 1997). It is shown that this can be viewed as the formalisation of a method of proof that dates back to Aristotle, namely proof by exposition (ecthesis), and that there are traces of this method in the strategies described by a number of psychologists, from Störring (1908) to the present day. It was hypothesised that by rendering individual cases explicit in the premises the chance that reasoners engage in a proof by exposition would be enhanced, and thus performance improved. To do so, we used syllogisms with singular premises (e. g., this X is Y). This resulted in a uniform increase in performance as compared to performance on the associated standard syllogisms. These results cannot be explained by the main theories of syllogistic reasoning in their current state.
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https://jeannicod.ccsd.cnrs.fr/ijn_00343123
Contributeur : Guy Politzer <>
Soumis le : samedi 29 novembre 2008 - 13:07:20
Dernière modification le : jeudi 11 janvier 2018 - 06:19:08
Document(s) archivé(s) le : lundi 7 juin 2010 - 23:35:39

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  • HAL Id : ijn_00343123, version 1

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Guy Politzer, Hugo Mercier. Solving categorical syllogisms with singular premises. Thinking and Reasoning, Taylor & Francis (Routledge), 2008, 14 (4), pp.414-453. 〈ijn_00343123〉

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