display all the ideas for this combination of texts
3 ideas
8078 | Modus ponens is one of five inference rules identified by the Stoics [Chrysippus, by Devlin] |
2669 | Dialectic assumes that all statements are either true or false, but self-referential paradoxes are a big problem [Cicero] |
6023 | Every proposition is either true or false [Chrysippus, by Cicero] |