4 ideas
22312 | Facts can be both positive and negative [Wittgenstein, by Potter] |
14798 | All communication is vague, and is outside the principle of non-contradiction [Peirce] |
14797 | Vagueness is a neglected but important part of mathematical thought [Peirce] |
16383 | Puzzled Pierre has two mental files about the same object [Recanati on Kripke] |