4 ideas
18189 | ZFC could contain a contradiction, and it can never prove its own consistency [MacLane] |
18119 | Mathematics is a mental activity which does not use language [Brouwer, by Bostock] |
18118 | Brouwer regards the application of mathematics to the world as somehow 'wicked' [Brouwer, by Bostock] |
468 | Musical performance can reveal a range of virtues [Damon of Ath.] |