Combining Texts

Ideas for 'fragments/reports', 'Identity, Ostension, and Hypostasis' and 'Modal Logics and Philosophy'

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2 ideas

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

8078	Modus ponens is one of five inference rules identified by the Stoics [Chrysippus, by Devlin]

5. Theory of Logic / B. Logical Consequence / 7. Strict Implication

7789	Necessary implication is called 'strict implication'; if successful, it is called 'entailment' [Girle]