3 ideas
| 3299 | In logic identity involves reflexivity (x=x), symmetry (if x=y, then y=x) and transitivity (if x=y and y=z, then x=z) [Baillie] |
| 16705 | Whiteness isn't created in an alteration, because it is just this-being-white [Oresme] |
| 5467 | Euler said nature is instrinsically passive, and minds cause change [Euler, by Ellis] |