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9820 | In classical logic, logical truths are valid formulas; in higher-order logics they are purely logical [Dummett] |
13986 | Plato found antinomies in ideas, Kant in space and time, and Bradley in relations [Plato, by Ryle] |
14150 | Plato's 'Parmenides' is perhaps the best collection of antinomies ever made [Russell on Plato] |