PPT Slide
Ancient & Medieval Philosophy -- David L. Rouse
- They also did important work on conditional ("if..., then") statements.
- Building upon the work of the Megerians, the Stoics developed truth functional logic, and logic in which the truth of compound propositions is understood as a function of component propositions and the terms that connect them.
- Examples of argument forms explored by Chrysippus are modus ponens ( If p, then q. p. Therefore q) and modus tolens (If p, then q. Not q. Therefore not p.)