4 ideas
10121 | Contradiction is not a sign of falsity, nor lack of contradiction a sign of truth [Pascal] |
9103 | A universal is not a real feature of objects, but only a thought-object in the mind [William of Ockham] |
9155 | An a priori proof is independent of experience [Leibniz] |
9104 | A universal is the result of abstraction, which is only a kind of mental picturing [William of Ockham] |