6 ideas
| 10882 | Predicative definitions only refer to entities outside the defined collection [Horsten] |
| 9560 | S5 provides the correct logic for necessity in the broadly logical sense [Fine,K] |
| 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] |
| 6019 | If someone squashed a horse to make a dog, something new would now exist [Mnesarchus] |