7 ideas
15457 | Interdefinition is useless by itself, but if we grasp one separately, we have them both [Lewis] |
19053 | Logic would be more natural if negation only referred to predicates [Dummett] |
19052 | Natural language 'not' doesn't apply to sentences [Dummett] |
15400 | We must avoid circularity between what is intrinsic and what is natural [Lewis, by Cameron] |
15458 | A property is 'intrinsic' iff it can never differ between duplicates [Lewis] |
15459 | Ellipsoidal stars seem to have an intrinsic property which depends on other objects [Lewis] |
5467 | Euler said nature is instrinsically passive, and minds cause change [Euler, by Ellis] |