4 ideas
18256 | Quantity is inconceivable without the idea of addition [Frege] |
9831 | Geometry appeals to intuition as the source of its axioms [Frege] |
16661 | There are two sorts of category - referring to things, and to circumstances of things [Boethius] |
16668 | Modes of things exist in some way, without being full-blown substances [Gassendi] |