5 ideas
17807 | To study formal systems, look at the whole thing, and not just how it is constructed in steps [Curry] |
17806 | It is untenable that mathematics is general physical truths, because it needs infinity [Curry] |
17808 | Saying mathematics is logic is merely replacing one undefined term by another [Curry] |
3016 | Even the gods cannot strive against necessity [Pittacus, by Diog. Laertius] |
19000 | Read 'all ravens are black' as about ravens, not as about an implication [Belnap] |