4 ideas
7791 | The simplest of the logics based on possible worlds is Lewis's S5 [Lewis,CI, by Girle] |
11002 | Equating necessity with informal provability is the S4 conception of necessity [Lewis,CI, by Read] |
7295 | Maybe induction is only reliable IF reality is stable [Mitchell,A] |
20441 | An ordinary object can be a work of art, but only if some theory of art supports it [Danto] |