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7

Ironclad, Airtight Validity

Lecture no. 7 from the course: The Philosopher's Toolkit: How to Be the Most Rational Person in Any Room

Ironclad, Airtight Validity

Taught by Professor Patrick Grim | 31 min | Categories: The Great Courses Plus Online Philosophy & Religion Courses

What makes an argument valid? Continue your study of Aristotelian logic by looking at how propositions form airtight arguments. By mapping out the logic of syllogisms with Venn diagrams, you’ll enhance your deductive reasoning skills—and you’ll see that the unfortunate trade-off for an absolutely airtight syllogism is that it doesn’t really offer any new information.

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March 8, 2017

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