5 ideas
9390 | Logic guides thinking, but it isn't a substitute for it [Rumfitt] |
13416 | Mathematics must be based on axioms, which are true because they are axioms, not vice versa [Tait, by Parsons,C] |
9389 | Vague membership of sets is possible if the set is defined by its concept, not its members [Rumfitt] |
1748 | Archelaus was the first person to say that the universe is boundless [Archelaus, by Diog. Laertius] |
5989 | Archelaus said life began in a primeval slime [Archelaus, by Schofield] |