4 ideas
8920 | Equivalence relations are reflexive, symmetric and transitive, and classify similar objects [Lipschutz] |
21547 | On Meinong's principles 'the existent round square' has to exist [Russell] |
19565 | How could the mind have a link to the necessary character of reality? [Devitt] |
19564 | Some knowledge must be empirical; naturalism implies that all knowledge is like that [Devitt] |