4 ideas
7791 | The simplest of the logics based on possible worlds is Lewis's S5 [Lewis,CI, by Girle] |
6019 | If someone squashed a horse to make a dog, something new would now exist [Mnesarchus] |
11002 | Equating necessity with informal provability is the S4 conception of necessity [Lewis,CI, by Read] |
22688 | The Aristotelian idea that choices can be perceived needs literary texts to expound it [Nussbaum] |