5 ideas
7791 | The simplest of the logics based on possible worlds is Lewis's S5 [Lewis,CI, by Girle] |
15785 | Our commitments are to an 'ontology', but also to an 'ideology', or conceptual system [Hintikka] |
11002 | Equating necessity with informal provability is the S4 conception of necessity [Lewis,CI, by Read] |
15786 | Commitment to possible worlds is part of our ideology, not part of our ontology [Hintikka] |
14470 | Explanatory exclusion: there cannot be two separate complete explanations of a single event [Kim] |