5 ideas
3340 | Von Neumann defines each number as the set of all smaller numbers [Neumann, by Blackburn] |
3355 | Von Neumann wanted mathematical functions to replace sets [Neumann, by Benardete,JA] |
22716 | Von Neumann defined ordinals as the set of all smaller ordinals [Neumann, by Poundstone] |
19382 | Abstracta are abbreviated ways of talking; there are just substances, and truths about them [Leibniz] |
14409 | I am a presentist, and all language and common sense supports my view [Bigelow] |