Combining Texts

Ideas for 'fragments/reports', 'Identity through Possible Worlds' and 'On Referring'

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5 ideas

5. Theory of Logic / B. Logical Consequence / 5. Modus Ponens

8078	Modus ponens is one of five inference rules identified by the Stoics [Chrysippus, by Devlin]

5. Theory of Logic / D. Assumptions for Logic / 2. Excluded Middle

6023	Every proposition is either true or false [Chrysippus, by Cicero]

5. Theory of Logic / E. Structures of Logic / 1. Logical Form

8358	There are no rules for the exact logic of ordinary language, because that doesn't exist [Strawson,P]

5. Theory of Logic / F. Referring in Logic / 2. Descriptions / c. Theory of definite descriptions

6413	'The present King of France is bald' presupposes existence, rather than stating it [Strawson,P, by Grayling]

8354	Russell asks when 'The King of France is wise' would be a true assertion [Strawson,P]