Combining Philosophers

All the ideas for Hermarchus, Hilbert,D/Ackermann,W and Donald C. Williams

expand these ideas     |    start again     |     specify just one area for these philosophers

---

5 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]

8. Modes of Existence / B. Properties / 13. Tropes / a. Nature of tropes

8510	'Socrates is wise' means a concurrence sum contains a member of a similarity set [Williams,DC]

8508	A 'trope' is an abstract particular, the occurrence of an essence [Williams,DC]

8509	A world is completely constituted by its tropes and their connections [Williams,DC]

25. Social Practice / F. Life Issues / 6. Animal Rights

6005	Animals are dangerous and nourishing, and can't form contracts of justice [Hermarchus, by Sedley]