8 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] |
21227 | The Cogito demands a bridge to the world, and ends in isolating the ego [Velarde-Mayol] |
21215 | The representation may not be a likeness [Velarde-Mayol] |
1748 | Archelaus was the first person to say that the universe is boundless [Archelaus, by Diog. Laertius] |
21219 | Find the essence by varying an object, to see what remains invariable [Velarde-Mayol] |
5989 | Archelaus said life began in a primeval slime [Archelaus, by Schofield] |