4 ideas
| 10245 | One geometry cannot be more true than another [Poincaré] |
| 14790 | 'Abduction' is beginning a hypothesis, particularly if it includes preference of one explanation over others [Peirce] |
| 14791 | Abduction involves original suggestions, and not just the testing involved in induction [Peirce] |
| 12702 | Causes can be inferred from perfect knowledge of their effects [Leibniz] |