8 ideas
| 20350 | Metaphysics generalises the data, to get at the ontology [Richardson] |
| 20349 | Metaphysics aims at the essence of things, and a system to show how this explains other truths [Richardson] |
| 20351 | Metaphysics needs systems, because analysis just obsesses over details [Richardson] |
| 9565 | Zermelo made 'set' and 'member' undefined axioms [Zermelo, by Chihara] |
| 3339 | For Zermelo's set theory the empty set is zero and the successor of each number is its unit set [Zermelo, by Blackburn] |
| 20356 | Humans dominate because, unlike other animals, they have a synthesis of conflicting drives [Richardson] |
| 20366 | A mind that could see cause and effect as a continuum would deny cause and effect [Richardson] |
| 12709 | Motion is not absolute, but consists in relation [Leibniz] |