Combining Philosophers

All the ideas for Hilbert,D/Ackermann,W, Critias and Alexander R. Pruss

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

---

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]

10. Modality / C. Sources of Modality / 5. Modality from Actuality

12468

A state of affairs is only possible if there has been an actual substance to initiate it [Pruss]

23. Ethics / C. Virtue Theory / 2. Elements of Virtue Theory / e. Character

541	Virtue comes more from habit than character [Critias]

28. God / C. Attitudes to God / 5. Atheism

542	Fear of the gods was invented to discourage secret sin [Critias]