4 ideas
10245 | One geometry cannot be more true than another [Poincaré] |
13166 | Essences are no use in mathematics, if all mathematical truths are necessary [Mancosu] |
12739 | If we are dreaming, it is sufficient that the events are coherent, and obey laws [Leibniz] |
12738 | Successful prediction shows proficiency in nature [Leibniz] |