Combining Texts
Ideas for
'fragments/reports', 'Convergence' and 'Defending the Axioms'
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5 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 / C. Ontology of Logic / 3. If-Thenism
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Critics of if-thenism say that not all starting points, even consistent ones, are worth studying [Maddy]
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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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5. Theory of Logic / K. Features of Logics / 1. Axiomatisation
17605
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Hilbert's geometry and Dedekind's real numbers were role models for axiomatization [Maddy]
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17625
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If two mathematical themes coincide, that suggest a single deep truth [Maddy]
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