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Ideas for 'fragments/reports', 'Russell's Metaphysical Logic' and 'Metaphysics'

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5. Theory of Logic / D. Assumptions for Logic / 1. Bivalence
For Aristotle bivalence is a feature of reality [Aristotle, by Boulter]
5. Theory of Logic / D. Assumptions for Logic / 2. Excluded Middle
Every proposition is either true or false [Chrysippus, by Cicero]