8 ideas
| 18617 | Substances, unlike aggregates, can survive a change of parts [Mumford] |
| 18618 | Maybe possibilities are recombinations of the existing elements of reality [Mumford] |
| 18619 | Combinatorial possibility has to allow all elements to be combinable, which seems unlikely [Mumford] |
| 18620 | Combinatorial possibility relies on what actually exists (even over time), but there could be more [Mumford] |
| 14361 | Lewis says indicative conditionals are truth-functional [Lewis, by Jackson] |
| 8434 | In good counterfactuals the consequent holds in world like ours except that the antecedent is true [Lewis, by Horwich] |
| 14781 | A 'belief' is a habit which determines how our imagination and actions proceed [Peirce] |
| 9419 | A law of nature is a general axiom of the deductive system that is best for simplicity and strength [Lewis] |