4 ideas
19389 | Truth is a characteristic of possible thoughts [Leibniz] |
19388 | True and false seem to pertain to thoughts, yet unthought propositions seem to be true or false [Leibniz] |
18844 | You would cripple mathematics if you denied Excluded Middle [Hilbert] |
468 | Musical performance can reveal a range of virtues [Damon of Ath.] |