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Ideas for 'works', 'Logic in Mathematics' and 'LOT 2'

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2 ideas

5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / d. and

12664

A truth-table, not inferential role, defines 'and' [Fodor]

5. Theory of Logic / E. Structures of Logic / 8. Theories in Logic

16865

'Theorems' are both proved, and used in proofs [Frege]