4 ideas
15716 | If axioms and their implications have no contradictions, they pass my criterion of truth and existence [Hilbert] |
9916 | Convention, yes! Arbitrary, no! [Poincaré, by Putnam] |
11945 | In addition to laws, God must also create appropriate natures for things [Leibniz] |
19348 | All that is real in motion is the force or power which produces change [Leibniz] |