4 ideas
9879 | NF has no models, but just blocks the comprehension axiom, to avoid contradictions [Quine, by Dummett] |
13304 | Learned men gain more in one day than others do in a lifetime [Posidonius] |
16709 | Some people return to scholastic mysterious qualities, disguising them as 'forces' [Leibniz] |
20820 | Time is an interval of motion, or the measure of speed [Posidonius, by Stobaeus] |