4 ideas
21342 | A relation is internal if two things possessing the relation could not fail to be related [Moore,GE, by Heil] |
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] |
21799 | We just use the word 'faculty' when we don't know the psychological cause [Galen] |