Combining Philosophers

All the ideas for Carl Ginet, Roy Bhaskar and Hilbert,D/Ackermann,W

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]

9. Objects / D. Essence of Objects / 5. Essence as Kind

15143

Kind essences are the categorical bases of a thing's causal powers [Bhaskar, by Chakravartty]

13. Knowledge Criteria / A. Justification Problems / 1. Justification / a. Justification issues

8836	Must all justification be inferential? [Ginet]

8837	Inference cannot originate justification, it can only transfer it from premises to conclusion [Ginet]