4 ideas
18946 | Unreflectively, we all assume there are nonexistents, and we can refer to them [Reimer] |
10558 | Abstract objects are actually constituted by the properties by which we conceive them [Zalta] |
13166 | Essences are no use in mathematics, if all mathematical truths are necessary [Mancosu] |
10557 | Abstract objects are captured by second-order modal logic, plus 'encoding' formulas [Zalta] |