4 ideas
1556 | By nature people are close to one another, but culture drives them apart [Hippias] |
18883 | Any equivalence relation among similar things allows the creation of an abstractum [Simons] |
18884 | Abstraction is usually seen as producing universals and numbers, but it can do more [Simons] |
11968 | The intension of a sentence is the set of all possible worlds in which it is true [Carnap, by Kaplan] |