5 ideas
18189 | ZFC could contain a contradiction, and it can never prove its own consistency [MacLane] |
10245 | One geometry cannot be more true than another [Poincaré] |
18383 | Plantinga says there is just this world, with possibilities expressed in propositions [Plantinga, by Armstrong] |
11891 | Possibilities for an individual can only refer to that individual, in some possible world [Plantinga, by Mackie,P] |
20704 | A possible world contains a being of maximal greatness - which is existence in all worlds [Plantinga, by Davies,B] |