5 ideas
13099 | Analysing right down to primitive concepts seems beyond our powers [Leibniz] |
5022 | We hold a proposition true if we are ready to follow it, and can't see any objections [Leibniz] |
3750 | "It is true that x" means no more than x [Ramsey] |
17743 | De Morgan introduced a 'universe of discourse', to replace Boole's universe of 'all things' [De Morgan, by Walicki] |
18818 | Sentence meaning is given by the actions to which it would lead [Ramsey] |