6 ideas
10882 | Predicative definitions only refer to entities outside the defined collection [Horsten] |
9879 | NF has no models, but just blocks the comprehension axiom, to avoid contradictions [Quine, by Dummett] |
10884 | A theory is 'categorical' if it has just one model up to isomorphism [Horsten] |
10885 | Computer proofs don't provide explanations [Horsten] |
10881 | The concept of 'ordinal number' is set-theoretic, not arithmetical [Horsten] |
16689 | The schools said spirits lack extension, and wonder how many could dance on a needle's point [More,H] |