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Ideas for 'Parmenides', 'Writing the Book of the World' and 'The Theory of Logical Types'

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2 ideas

5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / a. Logical connectives

15019

Define logical constants by role in proofs, or as fixed in meaning, or as topic-neutral [Sider]

5. Theory of Logic / E. Structures of Logic / 5. Functions in Logic

21566

'Propositional functions' are ambiguous until the variable is given a value [Russell]