4 ideas
23367 | Even pointing a finger should only be done for a reason [Epictetus] |
6408 | Russell needed three extra axioms to reduce maths to logic: infinity, choice and reducibility [Grayling] |
12887 | A whole must have one characteristic, an internal relation, and a structure [Rescher/Oppenheim] |
6414 | Two propositions might seem self-evident, but contradict one another [Grayling] |