4 ideas
15585 | Later Heidegger sees philosophy as more like poetry than like science [Heidegger, by Polt] |
18256 | Quantity is inconceivable without the idea of addition [Frege] |
9831 | Geometry appeals to intuition as the source of its axioms [Frege] |
21570 | Numbers are just verbal conveniences, which can be analysed away [Russell] |