4 ideas
20653 | Six reduction levels: groups, lives, cells, molecules, atoms, particles [Putnam/Oppenheim, by Watson] |
9567 | Maths deals with quantities of physical significance, ignoring irrelevant features [Geroch] |
15150 | The properties of an electron can't be explained just as 'clustering' [Chakravartty on Boyd] |
15149 | Properties cluster together, either because of intrinsic relations, or because of an underlying process [Boyd, by Chakravartty] |