5 ideas
16974 | The nature of each logical concept is given by a collection of inference rules [Correia] |
12887 | A whole must have one characteristic, an internal relation, and a structure [Rescher/Oppenheim] |
16973 | Explain logical necessity by logical consequence, or the other way around? [Correia] |
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] |