4 ideas
18946 | Unreflectively, we all assume there are nonexistents, and we can refer to them [Reimer] |
10855 | Actual infinities are not allowed in mathematics - only limits which may increase without bound [Gauss] |
16635 | Incorporeal substances are powers or forces [Descartes, by Pasnau] |
16684 | Impenetrability only belongs to the essence of extension [Descartes] |