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] |
19384 | Space and time are the order of all possibilities, and don't just relate to what is actual [Leibniz] |
20820 | Time is an interval of motion, or the measure of speed [Posidonius, by Stobaeus] |