5 ideas
10152 | Set theory and logic are fairy tales, but still worth studying [Tarski] |
9783 | While no two classes coincide in membership, there are distinct but coextensive attributes [Cartwright,R] |
10151 | I am a deeply convinced nominalist [Tarski] |
13304 | Learned men gain more in one day than others do in a lifetime [Posidonius] |
20820 | Time is an interval of motion, or the measure of speed [Posidonius, by Stobaeus] |