3 ideas
| 4298 | All items of possible human knowledge are interconnected, and can be reached by inference [Descartes] |
| 12729 | The cause of a change is not the real influence, but whatever gives a reason for the change [Leibniz] |
| 19216 | Propositions (such as 'that dog is barking') only exist if their items exist [Williamson] |