5 ideas
4298 | All items of possible human knowledge are interconnected, and can be reached by inference [Descartes] |
6007 | If you know your father, but don't recognise your father veiled, you know and don't know the same person [Eubulides, by Dancy,R] |
6006 | If you say truly that you are lying, you are lying [Eubulides, by Dancy,R] |
6008 | Removing one grain doesn't destroy a heap, so a heap can't be destroyed [Eubulides, by Dancy,R] |
9145 | We form the image of a cardinal number by a double abstraction, from the elements and from their order [Cantor] |