Combining Texts

All the ideas for 'talk', 'Mathematics: Form and Function' and 'Commentary on 'Physics''

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

---

3 ideas

4. Formal Logic / F. Set Theory ST / 4. Axioms for Sets / a. Axioms for sets

18189

ZFC could contain a contradiction, and it can never prove its own consistency [MacLane]

6. Mathematics / C. Sources of Mathematics / 10. Constructivism / a. Constructivism

9916	Convention, yes! Arbitrary, no! [Poincaré, by Putnam]

7. Existence / A. Nature of Existence / 3. Being / e. Being and nothing

16587

Prime matter is halfway between non-existence and existence [Averroes]