7 ideas
8758 | We could talk of open sentences, instead of sets [Chihara, by Shapiro] |
10265 | Chihara's system is a variant of type theory, from which he can translate sentences [Chihara, by Shapiro] |
8759 | We can replace type theory with open sentences and a constructibility quantifier [Chihara, by Shapiro] |
10264 | Introduce a constructibility quantifiers (Cx)Φ - 'it is possible to construct an x such that Φ' [Chihara, by Shapiro] |
13432 | The essence of a circle is the equality of its radii [Leibniz] |
1556 | By nature people are close to one another, but culture drives them apart [Hippias] |
12696 | Bodies are recreated in motion, and don't exist in intervening instants [Leibniz] |