10 ideas
21959 | Metaphysics is the most general attempt to make sense of things [Moore,AW] |
14626 | In S5 matters of possibility and necessity are non-contingent [Williamson] |
9616 | A set is a collection into a whole of distinct objects of our intuition or thought [Cantor] |
15896 | Cantor needed Power Set for the reals, but then couldn't count the new collections [Cantor, by Lavine] |
14625 | Necessity is counterfactually implied by its negation; possibility does not counterfactually imply its negation [Williamson] |
14623 | Strict conditionals imply counterfactual conditionals: □(A⊃B)⊃(A□→B) [Williamson] |
14624 | Counterfactual conditionals transmit possibility: (A□→B)⊃(◊A⊃◊B) [Williamson] |
14531 | Rather than define counterfactuals using necessity, maybe necessity is a special case of counterfactuals [Williamson, by Hale/Hoffmann,A] |
21958 | Appearances are nothing beyond representations, which is transcendental ideality [Moore,AW] |
14628 | Imagination is important, in evaluating possibility and necessity, via counterfactuals [Williamson] |