4 ideas
10152 | Set theory and logic are fairy tales, but still worth studying [Tarski] |
17743 | De Morgan introduced a 'universe of discourse', to replace Boole's universe of 'all things' [De Morgan, by Walicki] |
10151 | I am a deeply convinced nominalist [Tarski] |
12729 | The cause of a change is not the real influence, but whatever gives a reason for the change [Leibniz] |