5 ideas
10304 | Very few things in set theory remain valid in intuitionist mathematics [Bernays] |
10247 | We have no adequate logic at the moment, so mathematicians must create one [Veblen] |
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] |
7006 | Observing irrelevant items supports both 'all x are y' and 'all x are non-y', revealing its absurdity [Schofield,J] |