4 ideas
13007 | Archimedes defined a straight line as the shortest distance between two points [Archimedes, by Leibniz] |
9992 | The 'extension of a concept' in general may be quantitatively completely indeterminate [Cantor] |
22381 | Being a good father seems to depend on intentions, rather than actual abilities [Foot] |
22380 | Some words, such as 'knife', have a meaning which involves its function [Foot] |