Combining Texts
Ideas for
'fragments/reports', 'Ordinary Objects' and 'The Quest for Certainty'
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3 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 / 6. Entailment
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Analytical entailments arise from combinations of meanings and inference rules [Thomasson]
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5. Theory of Logic / D. Assumptions for Logic / 2. Excluded Middle
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Every proposition is either true or false [Chrysippus, by Cicero]
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