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Ideas for 'fragments/reports', 'Farewell to Reality: fairytale physics' and 'On Denoting'
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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]