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Ideas for 'fragments/reports', 'Chapters on Scepticism' and 'Empty Names'

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7 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 / F. Referring in Logic / 1. Naming / a. Names

18935

Semantic theory should specify when an act of naming is successful [Sawyer]

5. Theory of Logic / F. Referring in Logic / 1. Naming / c. Names as referential

18945

Millians say a name just means its object [Sawyer]

5. Theory of Logic / F. Referring in Logic / 1. Naming / e. Empty names

18934

Sentences with empty names can be understood, be co-referential, and even be true [Sawyer]

18938

Frege's compositional account of truth-vaues makes 'Pegasus doesn't exist' neither true nor false [Sawyer]

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

18947

Definites descriptions don't solve the empty names problem, because the properties may not exist [Sawyer]