11 ideas
| 8956 | What is a singleton set, if a set is meant to be a collection of objects? [Szabó] |
| 18270 | Choice suggests that intensions are not needed to ensure classes [Coffa] |
| 8953 | Abstract entities don't depend on their concrete entities ...but maybe on the totality of concrete things [Szabó] |
| 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] |
| 8954 | Geometrical circles cannot identify a circular paint patch, presumably because they lack something [Szabó] |
| 18266 | Mathematics generalises by using variables [Coffa] |
| 8955 | Abstractions are imperceptible, non-causal, and non-spatiotemporal (the third explaining the others) [Szabó] |
| 1748 | Archelaus was the first person to say that the universe is boundless [Archelaus, by Diog. Laertius] |
| 18279 | Relativity is as absolutist about space-time as Newton was about space [Coffa] |
| 5989 | Archelaus said life began in a primeval slime [Archelaus, by Schofield] |