A Mereological Reading of the Dictum de Omni et Nullo

Archiv für Geschichte der Philosophie (forthcoming)
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When Aristotle introduces the perfect moods, he refers back to the dictum de omni et nullo, a semantic condition for universal affirmations and negations. There recently has been renewed interest in the question whether the dictum validates the assertoric syllogistic. I rehearse evidence that Aristotle provides a mereological semantics for universal affirmations and negations, and note that this semantics entails a nonstandard reading of the dictum, under which the dictum, in the presence of a minimal logical apparatus, indeed validates the assertoric syllogistic. I argue that this mereological validation offers advantages over recent discussions in Morison, Malink, Ebert and Vlasits.

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Phil Corkum
University of Alberta

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References found in this work

The structure of objects.Kathrin Koslicki - 2008 - New York: Oxford University Press.
Parts: A Study in Ontology.Peter M. Simons - 1987 - Oxford, England: Clarendon Press.
Parts : a Study in Ontology.Peter Simons - 1987 - Revue de Métaphysique et de Morale 2:277-279.
Mereology.Achille C. Varzi - 2016 - Stanford Encyclopedia of Philosophy.

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