7 ideas
19404 | Necessities rest on contradiction, and contingencies on sufficient reason [Leibniz] |
17368 | Essentialism concerns the nature of a group, not its category [Devitt] |
17370 | Things that gradually change, like species, can still have essences [Devitt] |
5495 | Instances of pain are physical tokens, but the nature of pain is more abstract [Putnam, by Lycan] |
19403 | Each of the infinite possible worlds has its own laws, and the individuals contain those laws [Leibniz] |
17369 | We name species as small to share properties, but large enough to yield generalisations [Devitt] |
17367 | Species are phenetic, biological, niche, or phylogenetic-cladistic [Devitt, by PG] |