Combining Philosophers

Ideas for Plotinus, Aristotle and Anon (Par)

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2 ideas

5. Theory of Logic / A. Overview of Logic / 6. Classical Logic

12376

Demonstrations by reductio assume excluded middle [Aristotle]

5. Theory of Logic / A. Overview of Logic / 7. Second-Order Logic

11033

Predications of predicates are predications of their subjects [Aristotle]