6 ideas
| 13007 | Archimedes defined a straight line as the shortest distance between two points [Archimedes, by Leibniz] |
| 16698 | Days exist, and yet they seem to be made up of parts which don't exist [Burley] |
| 16690 | Unlike permanent things, successive things cannot exist all at once [Burley] |
| 8793 | If observation is knowledge, it is not just an experience; it is a justification in the space of reasons [Sellars] |
| 8792 | Observations like 'this is green' presuppose truths about what is a reliable symptom of what [Sellars] |
| 8791 | The concept of 'green' involves a battery of other concepts [Sellars] |