3 ideas
18946 | Unreflectively, we all assume there are nonexistents, and we can refer to them [Reimer] |
8638 | Thomae's idea of abstract from peculiarities gives a general concept, and leaves the peculiarities [Frege on Thomae] |
7634 | Icons resemble their subject, an index is a natural sign, and symbols are conventional [Peirce, by Maund] |