Combining Texts
Ideas for
'fragments/reports', 'Identity and Necessity' and 'Truth and Truthmakers'
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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 / F. Referring in Logic / 1. Naming / b. Names as descriptive
9175
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We may fix the reference of 'Cicero' by a description, but thereafter the name is rigid [Kripke]
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5. Theory of Logic / F. Referring in Logic / 1. Naming / c. Names as referential
9171
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The function of names is simply to refer [Kripke]
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