13 ideas
| 17743 | De Morgan introduced a 'universe of discourse', to replace Boole's universe of 'all things' [De Morgan, by Walicki] |
| 17954 | Essence is a thing's necessities, but what about its possibilities (which may not be realised)? [Vetter] |
| 17953 | Real definition fits abstracta, but not individual concrete objects like Socrates [Vetter] |
| 17952 | Modal accounts make essence less mysterious, by basing them on the clearer necessity [Vetter] |
| 17959 | Metaphysical necessity is even more deeply empirical than Kripke has argued [Vetter] |
| 17955 | Possible worlds allow us to talk about degrees of possibility [Vetter] |
| 17957 | Maybe possibility is constituted by potentiality [Vetter] |
| 12732 | Some necessary truths are brute, and others derive from final causes [Leibniz] |
| 17958 | The apparently metaphysically possible may only be epistemically possible [Vetter] |
| 17956 | Closeness of worlds should be determined by the intrinsic nature of relevant objects [Vetter] |
| 19438 | Our large perceptions and appetites are made up tiny unconscious fragments [Leibniz] |
| 19415 | Passions reside in confused perceptions [Leibniz] |
| 19439 | God produces possibilities, and thus ideas [Leibniz] |