Combining Texts

All the ideas for 'Leibniz', 'Letter on Freedom' and 'works'

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

5 ideas

2. Reason / B. Laws of Thought / 2. Sufficient Reason
5042 For every event it is possible for an omniscient being to give a reason for its occurrence [Leibniz]
4. Formal Logic / F. Set Theory ST / 4. Axioms for Sets / a. Axioms for sets
3340 Von Neumann defines each number as the set of all smaller numbers [Neumann, by Blackburn]
4. Formal Logic / F. Set Theory ST / 8. Critique of Set Theory
3355 Von Neumann wanted mathematical functions to replace sets [Neumann, by Benardete,JA]
6. Mathematics / A. Nature of Mathematics / 3. Nature of Numbers / e. Ordinal numbers
22716 Von Neumann defined ordinals as the set of all smaller ordinals [Neumann, by Poundstone]
9. Objects / F. Identity among Objects / 7. Indiscernible Objects
7566 The Identity of Indiscernibles is really the same as the verification principle [Jolley]