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] |
490 | Everything happens by reason and necessity [Leucippus] |
22072 | Schelling always affirmed the absolute status of freedom [Schelling, by Courtine] |