5 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] |
18269 | Logical objects are extensions of concepts, or ranges of values of functions [Frege] |
21432 | Culture is the struggle to agree what is normal [Gibson,A] |
5470 | The idea of laws of nature arose in the Middle Ages [Hall,AR, by Ellis] |