Combining Texts

Ideas for 'In Defense of Essentialism', 'Posterior Analytics' and 'Problems of Philosophy'

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2 ideas

5. Theory of Logic / B. Logical Consequence / 1. Logical Consequence

12373

Something holds universally when it is proved of an arbitrary and primitive case [Aristotle]

5. Theory of Logic / B. Logical Consequence / 5. Modus Ponens

5395	Demonstration always relies on the rule that anything implied by a truth is true [Russell]