4 ideas
19404 | Necessities rest on contradiction, and contingencies on sufficient reason [Leibniz] |
1556 | By nature people are close to one another, but culture drives them apart [Hippias] |
11968 | The intension of a sentence is the set of all possible worlds in which it is true [Carnap, by Kaplan] |
19403 | Each of the infinite possible worlds has its own laws, and the individuals contain those laws [Leibniz] |