Combining Texts

All the ideas for 'Letters to Varignon', 'Space and Time' and 'Principles of Theoretical Logic'

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3 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]

27. Natural Reality / C. Space / 6. Space-Time

14014

Space alone, and time alone, will fade away, and only their union has an independent reality [Minkowski]

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

19414

Men are related to animals, which are related to plants, then to fossils, and then to the apparently inert [Leibniz]