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CL - Lecture 3b - Particular Propositions

You have already met Aristotle's universal propositions, universal assertion, "every a is b", and universal denial, "no a is b". The negations of these are his particular…

From  Haoran Peng on October 3rd, 2020 0 likes 483 plays 0  

CL - Lecture 3a - Contraposition of Propositions

Last week we used object-level contraposition to derive four new syllogisms, starting from Barbara. This week we will use meta-level contraposition to derive two more new syllogisms from each of the…

From  Haoran Peng on October 3rd, 2020 0 likes 725 plays 0