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Ideas for 'fragments/reports', 'What is the Source of Knowledge of Modal Truths?' and 'The Philosophy of Mathematics'

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2 ideas

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

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

9195	Intuitionists reject excluded middle, not for a third value, but for possibility of proof [Dummett]