Combining Philosophers

All the ideas for H.Putnam/P.Oppenheim, Hilbert,D/Ackermann,W and William Crathorn

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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]

14. Science / D. Explanation / 2. Types of Explanation / j. Explanations by reduction

20653

Six reduction levels: groups, lives, cells, molecules, atoms, particles [Putnam/Oppenheim, by Watson]

27. Natural Reality / D. Time / 1. Nature of Time / e. Eventless time

16697

Time is independent of motion, because God could stop everything for a short or long time [Crathorn, by Pasnau]