5 ideas
4038 | Properties are sets of their possible instances (which separates 'renate' from 'cordate') [Lewis, by Mellor/Oliver] |
15035 | If universals are not separate, we can isolate them by abstraction [Boethius, by Panaccio] |
17371 | Some kinds are very explanatory, but others less so, and some not at all [Devitt] |
17372 | The higher categories are not natural kinds, so the Linnaean hierarchy should be given up [Devitt] |
17373 | Species pluralism says there are several good accounts of what a species is [Devitt] |