5 ideas
19404 | Necessities rest on contradiction, and contingencies on sufficient reason [Leibniz] |
13858 | The truth-functional account of conditionals is right, if the antecedent is really acceptable [Jackson, by Edgington] |
13304 | Learned men gain more in one day than others do in a lifetime [Posidonius] |
19403 | Each of the infinite possible worlds has its own laws, and the individuals contain those laws [Leibniz] |
20820 | Time is an interval of motion, or the measure of speed [Posidonius, by Stobaeus] |