4 ideas
2614 | Modern phenomenalism holds that objects are logical constructions out of sense-data [Ayer] |
9155 | An a priori proof is independent of experience [Leibniz] |
2615 | The concept of sense-data allows us to discuss appearances without worrying about reality [Ayer] |
2667 | A false object might give the same presentation as a true one [Arcesilaus, by Cicero] |