4 ideas
19000 | Read 'all ravens are black' as about ravens, not as about an implication [Belnap] |
1748 | Archelaus was the first person to say that the universe is boundless [Archelaus, by Diog. Laertius] |
12702 | Causes can be inferred from perfect knowledge of their effects [Leibniz] |
5989 | Archelaus said life began in a primeval slime [Archelaus, by Schofield] |