Combining Texts

All the ideas for 'Science and Method', 'What Does It All Mean?' 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]

6. Mathematics / A. Nature of Mathematics / 2. Geometry

10245

One geometry cannot be more true than another [Poincaré]

19. Language / A. Nature of Meaning / 6. Meaning as Use

4001	The meaning of a word contains all its possible uses as well as its actual ones [Nagel]