4 ideas
8693 | An 'abstraction principle' says two things are identical if they are 'equivalent' in some respect [Boolos] |
13304 | Learned men gain more in one day than others do in a lifetime [Posidonius] |
17993 | Laws are relations of kinds, quantities and qualities, supervening on the essences of a domain [Vetter] |
20820 | Time is an interval of motion, or the measure of speed [Posidonius, by Stobaeus] |