4 ideas
9390 | Logic guides thinking, but it isn't a substitute for it [Rumfitt] |
9389 | Vague membership of sets is possible if the set is defined by its concept, not its members [Rumfitt] |
6457 | Sensations are mental, but sense-data could be mind-independent [Vesey] |
4871 | A thing is free if it acts only by the necessity of its own nature [Spinoza] |