Combining Philosophers

All the ideas for Hermarchus, James Joule 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]

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]

27. Natural Reality / A. Classical Physics / 2. Thermodynamics / b. Heat

20645

Heat is a state of vibration, not a substance [Joule]

20972

Joule showed that energy converts to heat, and heat to energy [Joule, by Papineau]