6 ideas
3750 | "It is true that x" means no more than x [Ramsey] |
18818 | Sentence meaning is given by the actions to which it would lead [Ramsey] |
1748 | Archelaus was the first person to say that the universe is boundless [Archelaus, by Diog. Laertius] |
20645 | Heat is a state of vibration, not a substance [Joule] |
20972 | Joule showed that energy converts to heat, and heat to energy [Joule, by Papineau] |
5989 | Archelaus said life began in a primeval slime [Archelaus, by Schofield] |