Combining Texts
Ideas for
'fragments/reports', 'Contemporary Efficient Causation: Aristotelian themes' and 'Noneism or Allism?'
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4 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 / D. Assumptions for Logic / 2. Excluded Middle
6023
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Every proposition is either true or false [Chrysippus, by Cicero]
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5. Theory of Logic / G. Quantification / 4. Substitutional Quantification
15533
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We can quantify over fictions by quantifying for real over their names [Lewis]
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5. Theory of Logic / G. Quantification / 7. Unorthodox Quantification
15534
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We could quantify over impossible objects - as bundles of properties [Lewis]
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