9 ideas
| 15527 | Defining terms either enables elimination, or shows that they don't require elimination [Lewis] |
| 6019 | If someone squashed a horse to make a dog, something new would now exist [Mnesarchus] |
| 579 | Cratylus said you couldn't even step into the same river once [Cratylus, by Aristotle] |
| 15530 | A logically determinate name names the same thing in every possible world [Lewis] |
| 578 | Cratylus decided speech was hopeless, and his only expression was the movement of a finger [Cratylus, by Aristotle] |
| 15531 | The Ramsey sentence of a theory says that it has at least one realisation [Lewis] |
| 15528 | A Ramsey sentence just asserts that a theory can be realised, without saying by what [Lewis] |
| 15526 | There is a method for defining new scientific terms just using the terms we already understand [Lewis] |
| 15529 | It is better to have one realisation of a theory than many - but it may not always be possible [Lewis] |