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'fragments/reports', 'Causation and Explanation' and 'Beginning Logic'
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2 ideas
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 / 8. Material Implication
9520
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The paradoxes of material implication are P |- Q → P, and ¬P |- P → Q [Lemmon]
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