4 ideas
18758 | Validity is provable, but invalidity isn't, because the model is infinite [Church, by McGee] |
20921 | How can we state relativism of sweet and sour, if they have no determinate nature? [Theophrastus] |
7296 | 'Grue' is not a colour [Milsted] |
5990 | Theophrastus doubted whether nature could be explained teleologically [Theophrastus, by Gottschalk] |