4 ideas
14797 | Vagueness is a neglected but important part of mathematical thought [Peirce] |
14798 | All communication is vague, and is outside the principle of non-contradiction [Peirce] |
9155 | An a priori proof is independent of experience [Leibniz] |
1556 | By nature people are close to one another, but culture drives them apart [Hippias] |