Combining Texts

All the ideas for 'fragments/reports', 'Principles of Theoretical Logic' and 'Metaphysical Foundations of Mathematics'

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4 ideas

4. Formal Logic / C. Predicate Calculus PC / 1. Predicate Calculus PC

17750

The first clear proof of the consistency of the first order predicate logic was in 1928 [Hilbert/Ackermann, by Walicki]

26. Natural Theory / A. Speculations on Nature / 5. Infinite in Nature

1748	Archelaus was the first person to say that the universe is boundless [Archelaus, by Diog. Laertius]

27. Natural Reality / D. Time / 2. Passage of Time / g. Time's arrow

22908

When one element contains the grounds of the other, the first one is prior in time [Leibniz]

27. Natural Reality / G. Biology / 3. Evolution

5989	Archelaus said life began in a primeval slime [Archelaus, by Schofield]