3 ideas
3016 | Even the gods cannot strive against necessity [Pittacus, by Diog. Laertius] |
15793 | We can take 'ways things might have been' as irreducible elements in our ontology [Stalnaker, by Lycan] |
11968 | The intension of a sentence is the set of all possible worlds in which it is true [Carnap, by Kaplan] |