5 ideas
14235 | Saying 'they can become a set' is a tautology, because reference to 'they' implies a collection [Cargile] |
22320 | An 'object' is just what can be referred to without possible non-existence [Wittgenstein] |
9141 | Abstraction theories build mathematics out of second-order equivalence principles [Cook/Ebert] |
18283 | Language pictures the essence of the world [Wittgenstein] |
18282 | You can't believe it if you can't imagine a verification for it [Wittgenstein] |