display all the ideas for this combination of texts
4 ideas
21533 | Contingency arises from tensed verbs changing the propositions to which they refer [Russell] |
14072 | Possible worlds identity needs a sortal [Gibbard] |
14078 | Only concepts, not individuals, can be the same across possible worlds [Gibbard] |
14079 | Kripke's semantics needs lots of intuitions about which properties are essential [Gibbard] |