6 ideas
18758 | Validity is provable, but invalidity isn't, because the model is infinite [Church, by McGee] |
10414 | Abstract objects are constituted by encoded collections of properties [Zalta, by Swoyer] |
10558 | Abstract objects are actually constituted by the properties by which we conceive them [Zalta] |
10415 | Properties make round squares and round triangles distinct, unlike exemplification [Zalta, by Swoyer] |
10557 | Abstract objects are captured by second-order modal logic, plus 'encoding' formulas [Zalta] |
1513 | The Egyptians were the first to say the soul is immortal and reincarnated [Herodotus] |