16 ideas
10845 | To be true a sentence must express a proposition, and not be ambiguous or vague or just expressive [Lewis] |
10847 | Truthmakers are about existential grounding, not about truth [Lewis] |
10846 | Truthmaker is correspondence, but without the requirement to be one-to-one [Lewis] |
13342 | Carnap defined consequence by contradiction, but this is unintuitive and changes with substitution [Tarski on Carnap] |
13251 | Each person is free to build their own logic, just by specifying a syntax [Carnap] |
17486 | Supervenience is simply modally robust property co-variance [Hendry] |
17481 | Nuclear charge (plus laws) explains electron structure and spectrum, but not vice versa [Hendry] |
17478 | Maybe two kinds are the same if there is no change of entropy on isothermal mixing [Hendry] |
17479 | The nature of an element must survive chemical change, so it is the nucleus, not the electrons [Hendry] |
17484 | Maybe the nature of water is macroscopic, and not in the microstructure [Hendry] |
17485 | Maybe water is the smallest part of it that still counts as water (which is H2O molecules) [Hendry] |
17483 | Water continuously changes, with new groupings of molecules [Hendry] |
17482 | Compounds can differ with the same collection of atoms, so structure matters too [Hendry] |
17477 | Defining elements by atomic number allowed atoms of an element to have different masses [Hendry] |
17476 | Elements survive chemical change, and are tracked to explain direction and properties [Hendry] |
17480 | Generally it is nuclear charge (not nuclear mass) which determines behaviour [Hendry] |