8 ideas
9406 | A class is natural when everybody can spot further members of it [Quinton] |
10009 | Substitutional quantification is just a variant of Tarski's account [Wallace, by Baldwin] |
18758 | Validity is provable, but invalidity isn't, because the model is infinite [Church, by McGee] |
15730 | Extreme nominalists say all classification is arbitrary convention [Quinton] |
15728 | The naturalness of a class depends as much on the observers as on the objects [Quinton] |
9407 | Properties imply natural classes which can be picked out by everybody [Quinton] |
15729 | Uninstantiated properties must be defined using the instantiated ones [Quinton] |
8520 | An individual is a union of a group of qualities and a position [Quinton, by Campbell,K] |