18 ideas
16951 | It was realised that possible worlds covered all modal logics, if they had a structure [Dummett] |
16952 | If something is only possible relative to another possibility, the possibility relation is not transitive [Dummett] |
16953 | Relative possibility one way may be impossible coming back, so it isn't symmetrical [Dummett] |
16960 | If possibilitiy is relative, that might make accessibility non-transitive, and T the correct system [Dummett] |
16958 | In S4 the actual world has a special place [Dummett] |
16066 | Additional or removal of any part changes a thing, so people are never the same person [Epicharmus] |
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] |
436 | A dog seems handsome to another a dog, and even a pig to another pig [Epicharmus] |
442 | Pleasures are like pirates - if you are caught they drown you in a sea of pleasures [Epicharmus] |
440 | Hands wash hands; give that you may get [Epicharmus] |
16956 | To explain generosity in a person, you must understand a generous action [Dummett] |
441 | Against a villain, villainy is not a useless weapon [Epicharmus] |
1748 | Archelaus was the first person to say that the universe is boundless [Archelaus, by Diog. Laertius] |
16954 | Generalised talk of 'natural kinds' is unfortunate, as they vary too much [Dummett] |
5989 | Archelaus said life began in a primeval slime [Archelaus, by Schofield] |
439 | God knows everything, and nothing is impossible for him [Epicharmus] |
443 | Human logos is an aspect of divine logos, and is sufficient for successful living [Epicharmus] |