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'fragments/reports', 'Causal Relations' and 'The Thesis that Mathematics is Logic'
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3 ideas
5. Theory of Logic / B. Logical Consequence / 5. Modus Ponens
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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 / C. Ontology of Logic / 3. If-Thenism
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Putnam coined the term 'if-thenism' [Putnam, by Musgrave]
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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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