3 ideas
18946 | Unreflectively, we all assume there are nonexistents, and we can refer to them [Reimer] |
22293 | Hilbert said (to block paradoxes) that mathematical existence is entailed by consistency [Hilbert, by Potter] |
9379 | A sentence is obvious if it is true, and any speaker of the language will instantly agree to it [Quine] |