5 ideas
| 490 | Everything happens by reason and necessity [Leucippus] |
| 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] |
| 8800 | If you would deny a truth if you know the full evidence, then knowledge has social aspects [Harman, by Sosa] |
| 9419 | A law of nature is a general axiom of the deductive system that is best for simplicity and strength [Lewis] |