6 ideas
14380 | The distinction between necessary and essential properties can be ignored [Rocca] |
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] |
13304 | Learned men gain more in one day than others do in a lifetime [Posidonius] |
9419 | A law of nature is a general axiom of the deductive system that is best for simplicity and strength [Lewis] |
20820 | Time is an interval of motion, or the measure of speed [Posidonius, by Stobaeus] |