6 ideas
9390 | Logic guides thinking, but it isn't a substitute for it [Rumfitt] |
12741 | If experience is just a dream, it is still real enough if critical reason is never deceived [Leibniz] |
12740 | The strongest criterion that phenomena show reality is success in prediction [Leibniz] |
13127 | Categories can't overlap; they are either disjoint, or inclusive [Sommers, by Westerhoff] |
9389 | Vague membership of sets is possible if the set is defined by its concept, not its members [Rumfitt] |
12721 | Light, heat and colour are apparent qualities, and so are motion, figure and extension [Leibniz] |