4 ideas
21963 | It is possible that an omnipotent God might make one and two fail to equal three [Descartes] |
6408 | Russell needed three extra axioms to reduce maths to logic: infinity, choice and reducibility [Grayling] |
18398 | Space, time, and some other basics, are not causal powers [Ellis] |
6414 | Two propositions might seem self-evident, but contradict one another [Grayling] |