Combining Philosophers

All the ideas for Eurytus, Hilbert,D/Ackermann,W and David H. Sanford

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4 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 / g. Causal explanations

8406	Not all explanations are causal, but if a thing can be explained at all, it can be explained causally [Sanford]

26. Natural Theory / C. Causation / 8. Particular Causation / c. Conditions of causation

8407	A totality of conditions necessary for an occurrence is usually held to be jointly sufficient for it [Sanford]

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]