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Ideas for 'fragments/reports', 'On Denoting' and 'Discourse on Metaphysics'

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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]

18944

Russell's theories aim to preserve excluded middle (saying all sentences are T or F) [Sawyer on Russell]