Combining Texts

Ideas for 'fragments/reports', 'fragments/reports' and 'Regressive Method for Premises in Mathematics'

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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]

2. Reason / B. Laws of Thought / 3. Non-Contradiction

17632

Non-contradiction was learned from instances, and then found to be indubitable [Russell]