4 ideas
10053 | Geometrical axioms imply the propositions, but the former may not be true [Russell] |
10052 | Geometry is united by the intuitive axioms of projective geometry [Russell, by Musgrave] |
16383 | Puzzled Pierre has two mental files about the same object [Recanati on Kripke] |
4316 | Either all action is rational, or reason dominates, or reason is only concerned with means [Cottingham] |