Combining Philosophers

All the ideas for Herodotus, Jean Calvin and Hilbert,D/Ackermann,W

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3 ideas

4. Formal Logic / C. Predicate Calculus PC / 1. Predicate Calculus PC
The first clear proof of the consistency of the first order predicate logic was in 1928 [Hilbert/Ackermann, by Walicki]
25. Social Practice / E. Policies / 2. Religion in Society
Only when working people are poor do they remain obedient to God [Calvin, by Weber]
29. Religion / D. Religious Issues / 2. Immortality / a. Immortality
The Egyptians were the first to say the soul is immortal and reincarnated [Herodotus]