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'fragments/reports', 'Modal Logics and Philosophy' and 'How to be a Liberal'
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5. Theory of Logic / B. Logical Consequence / 5. Modus Ponens
8078
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Modus ponens is one of five inference rules identified by the Stoics [Chrysippus, by Devlin]
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5. Theory of Logic / B. Logical Consequence / 7. Strict Implication
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Necessary implication is called 'strict implication'; if successful, it is called 'entailment' [Girle]
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