display all the ideas for this combination of texts
3 ideas
8375 | 'Necessary' is a predicate of a propositional function, saying it is true for all values of its argument [Russell] |
16957 | Possible worlds aren't how the world might be, but how a world might be, given some possibility [Dummett] |
16959 | If possible worlds have no structure (S5) they are equal, and it is hard to deny them reality [Dummett] |