13 ideas
| 1403 | A rational donkey would starve to death between two totally identical piles of hay [Buridan, by PG] |
| 15380 | Barcan:nothing comes into existence; Converse:nothing goes out; Both:domain is unchanging [Vervloesem] |
| 10245 | One geometry cannot be more true than another [Poincaré] |
| 15923 | Poincaré rejected the actual infinite, claiming definitions gave apparent infinity to finite objects [Poincaré, by Lavine] |
| 10180 | Mathematicians do not study objects, but relations between objects [Poincaré] |
| 9916 | Convention, yes! Arbitrary, no! [Poincaré, by Putnam] |
| 18203 | Avoid non-predicative classifications and definitions [Poincaré] |
| 16678 | Without magnitude a thing would retain its parts, but they would have no location [Buridan] |
| 16793 | A thing is (less properly) the same over time if each part is succeeded by another [Buridan] |
| 16726 | Why can't we deduce secondary qualities from primary ones, if they cause them? [Buridan] |
| 16577 | Induction is not demonstration, because not all of the instances can be observed [Buridan] |
| 16576 | Science is based on induction, for general truths about fire, rhubarb and magnets [Buridan] |
| 15877 | The aim of science is just to create a comprehensive, elegant language to describe brute facts [Poincaré, by Harré] |