4 ideas
17813 | Löwenheim-Skolem says any theory with a true interpretation has a model in the natural numbers [White,NP] |
10245 | One geometry cannot be more true than another [Poincaré] |
17812 | Finite cardinalities don't need numbers as objects; numerical quantifiers will do [White,NP] |
5467 | Euler said nature is instrinsically passive, and minds cause change [Euler, by Ellis] |