4 ideas
18521 | The criterion of existence is the possibility of action [Santayana] |
10414 | Abstract objects are constituted by encoded collections of properties [Zalta, by Swoyer] |
10415 | Properties make round squares and round triangles distinct, unlike exemplification [Zalta, by Swoyer] |
4761 | The 'error theory' of morals says there is no moral knowledge, because there are no moral facts [Mackie, by Engel] |