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Ideas for 'Explaining the A Priori', 'The Concept of Truth for Formalized Languages' and 'Relativism'

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2 ideas

5. Theory of Logic / D. Assumptions for Logic / 1. Bivalence

4700	A third value for truth might be "indeterminate", or a point on a scale between 'true' and 'false' [O'Grady]

5. Theory of Logic / D. Assumptions for Logic / 4. Identity in Logic

18759

Identity is invariant under arbitrary permutations, so it seems to be a logical term [Tarski, by McGee]