5 ideas
14713 | Truth in a scenario is the negation in that scenario being a priori incoherent [Chalmers] |
18758 | Validity is provable, but invalidity isn't, because the model is infinite [Church, by McGee] |
14712 | A sentence is a priori if no possible way the world might actually be could make it false [Chalmers] |
1748 | Archelaus was the first person to say that the universe is boundless [Archelaus, by Diog. Laertius] |
5989 | Archelaus said life began in a primeval slime [Archelaus, by Schofield] |