5 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] |
5996 | Critolaus redefined Aristotle's moral aim as fulfilment instead of happiness [Critolaus, by White,SA] |
7071 | Life and rationality are pointless if we can only contemplate the freedom of our own ego [Jacobi] |
7072 | Jacobi was the first philosopher to talk of nihilism [Jacobi, by Critchley] |