4 ideas
10558 | Abstract objects are actually constituted by the properties by which we conceive them [Zalta] |
5495 | Instances of pain are physical tokens, but the nature of pain is more abstract [Putnam, by Lycan] |
10557 | Abstract objects are captured by second-order modal logic, plus 'encoding' formulas [Zalta] |
22307 | Propositions don't name facts, because two opposed propositions can match one fact [Russell] |