4 ideas
23367 | Even pointing a finger should only be done for a reason [Epictetus] |
6564 | To affirm 'p and not-p' is to have mislearned 'and' or 'not' [Quine] |
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] |