3 ideas
18758 | Validity is provable, but invalidity isn't, because the model is infinite [Church, by McGee] |
15034 | Are genera and species real or conceptual? bodies or incorporeal? in sensibles or separate from them? [Porphyry] |
1515 | Pythagoreans believe it is absurd to seek for goodness anywhere except with the gods [Iamblichus] |