6 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] |
468 | Musical performance can reveal a range of virtues [Damon of Ath.] |
23035 | The good life aims at perfections, or absolute laws, or what is absolutely desirable [Green,TH] |
23037 | People are improved by egalitarian institutions and habits [Green,TH] |
23043 | All talk of the progress of a nation must reduce to the progress of its individual members [Green,TH] |