4 ideas
6408 | Russell needed three extra axioms to reduce maths to logic: infinity, choice and reducibility [Grayling] |
6414 | Two propositions might seem self-evident, but contradict one another [Grayling] |
14280 | The probability of two events is the first probability times the second probability assuming the first [Bayes] |
19399 | Prime matter is nothing when it is at rest [Leibniz] |