5 ideas
10304 | Very few things in set theory remain valid in intuitionist mathematics [Bernays] |
10303 | Restricted Platonism is just an ideal projection of a domain of thought [Bernays] |
10306 | Mathematical abstraction just goes in a different direction from logic [Bernays] |
3016 | Even the gods cannot strive against necessity [Pittacus, by Diog. Laertius] |
7296 | 'Grue' is not a colour [Milsted] |