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Ideas for 'fragments/reports', 'Letters to Frege' and 'Monadology'

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2 ideas

2. Reason / B. Laws of Thought / 2. Sufficient Reason

5969	Chrysippus said the uncaused is non-existent [Chrysippus, by Plutarch]

4642	No fact can be real and no proposition true unless there is a Sufficient Reason (even if we can't know it) [Leibniz]