Combining Texts

Ideas for 'fragments/reports', 'On the Nature of Truth and Falsehood' and 'Elements of Geometry'

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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 / E. Argument / 6. Conclusive Proof

8623	Proof reveals the interdependence of truths, as well as showing their certainty [Euclid, by Frege]