4 ideas
8923 | Numbers are identified by their main properties and relations, involving the successor function [MacBride] |
8926 | For mathematical objects to be positions, positions themselves must exist first [MacBride] |
22307 | Propositions don't name facts, because two opposed propositions can match one fact [Russell] |
468 | Musical performance can reveal a range of virtues [Damon of Ath.] |