4 ideas
21461 | I tried to be unsystematic and piecemeal, but failed; my papers presuppose my other views [Lewis] |
18256 | Quantity is inconceivable without the idea of addition [Frege] |
17447 | Parsons says counting is tagging as first, second, third..., and converting the last to a cardinal [Parsons,C, by Heck] |
9831 | Geometry appeals to intuition as the source of its axioms [Frege] |