5 ideas
9390 | Logic guides thinking, but it isn't a substitute for it [Rumfitt] |
12733 | Because of the definitions of cause, effect and power, cause and effect have the same power [Leibniz] |
9389 | Vague membership of sets is possible if the set is defined by its concept, not its members [Rumfitt] |
12734 | Every necessary proposition is demonstrable to someone who understands [Leibniz] |
468 | Musical performance can reveal a range of virtues [Damon of Ath.] |