Combining Philosophers

All the ideas for Hilbert,D/Ackermann,W, Mary Anne Warren and Mary Astell

expand these ideas     |    start again     |     specify just one area for these philosophers

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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]

16. Persons / A. Concept of a Person / 1. Existence of Persons

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Persons must be conscious, reasoning, motivated, communicative, self-aware [Warren, by Tuckness/Wolf]

24. Political Theory / A. Basis of a State / 3. Natural Values / a. Natural freedom

20581

If men are born free, are women born slaves? [Astell]