7 ideas
18253 | I wish to go straight from cardinals to reals (as ratios), leaving out the rationals [Frege] |
18166 | The loss of my Rule V seems to make foundations for arithmetic impossible [Frege] |
21558 | 'Predicative' norms are those which define a class [Russell] |
21559 | We need rules for deciding which norms are predicative (unless none of them are) [Russell] |
18269 | Logical objects are extensions of concepts, or ranges of values of functions [Frege] |
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] |