5 ideas
| 6343 | For Russell, both propositions and facts are arrangements of objects, so obviously they correspond [Horwich on Russell] |
| 22363 | You have only begun to do real science when you can express it in numbers [Kelvin] |
| 19216 | Propositions (such as 'that dog is barking') only exist if their items exist [Williamson] |
| 7534 | In 1906, Russell decided that propositions did not, after all, exist [Russell, by Monk] |
| 20644 | Energy has progressed from a mere formula, to a principle pervading all nature [Kelvin] |