4 ideas
15549 | If it were true that nothing at all existed, would that have a truthmaker? [Lewis] |
17743 | De Morgan introduced a 'universe of discourse', to replace Boole's universe of 'all things' [De Morgan, by Walicki] |
10242 | I apply structuralism to concrete and abstract objects indiscriminately [Quine] |
10243 | My ontology is quarks etc., classes of such things, classes of such classes etc. [Quine] |