Combining Philosophers

All the ideas for Anaximenes, Hilbert,D/Ackermann,W and Moritz Schlick

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3 ideas

1. Philosophy / E. Nature of Metaphysics / 7. Against Metaphysics

13737

The empiricist says that metaphysics is meaningless, rather than false [Schlick]

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]

26. Natural Theory / A. Speculations on Nature / 6. Early Matter Theories / c. Ultimate substances

1497	For Anaximenes nature is air, which takes different forms by rarefaction and condensation [Anaximenes, by Simplicius]