4 ideas
9463 | Classical logic is bivalent, has excluded middle, and only quantifies over existent objects [Jacquette] |
2614 | Modern phenomenalism holds that objects are logical constructions out of sense-data [Ayer] |
2615 | The concept of sense-data allows us to discuss appearances without worrying about reality [Ayer] |
14644 | If my conception of pain derives from me, it is a contradiction to speak of another's pain [Malcolm] |