6 ideas
8203 | All the arithmetical entities can be reduced to classes of integers, and hence to sets [Quine] |
16635 | Incorporeal substances are powers or forces [Descartes, by Pasnau] |
20653 | Six reduction levels: groups, lives, cells, molecules, atoms, particles [Putnam/Oppenheim, by Watson] |
8202 | Meaning is essence divorced from things and wedded to words [Quine] |
8201 | The distinction between meaning and further information is as vague as the essence/accident distinction [Quine] |
16684 | Impenetrability only belongs to the essence of extension [Descartes] |