4 ideas
10558 | Abstract objects are actually constituted by the properties by which we conceive them [Zalta] |
20363 | Leaves are unequal, but we form the concept 'leaf' by discarding their individual differences [Nietzsche] |
10557 | Abstract objects are captured by second-order modal logic, plus 'encoding' formulas [Zalta] |
16746 | Principles of things are not hidden features of forms, but the laws by which they were formed [Newton] |