Combining Philosophers

All the ideas for Aenesidemus, Eurytus and Hilbert,D/Ackermann,W

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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]

22. Metaethics / A. Ethics Foundations / 1. Nature of Ethics / h. Against ethics

6040	There is no universal goal to human life [Aenesidemus, by Photius]

27. Natural Reality / G. Biology / 1. Biology

651	Eurytus showed that numbers underlie things by making pictures of creatures out of pebbles [Eurytus, by Aristotle]