9 ideas
18270 | Choice suggests that intensions are not needed to ensure classes [Coffa] |
13831 | Logic is based on transitions between sentences [Prawitz] |
13825 | Natural deduction introduction rules may represent 'definitions' of logical connectives [Prawitz] |
13823 | In natural deduction, inferences are atomic steps involving just one logical constant [Prawitz] |
3016 | Even the gods cannot strive against necessity [Pittacus, by Diog. Laertius] |
18263 | The semantic tradition aimed to explain the a priori semantically, not by Kantian intuition [Coffa] |
18272 | Platonism defines the a priori in a way that makes it unknowable [Coffa] |
18266 | Mathematics generalises by using variables [Coffa] |
18279 | Relativity is as absolutist about space-time as Newton was about space [Coffa] |