 Causal determinism does not figure into the fatalist argument in Aristotle’s De Interpretatione, or in Diodorus Cronus’ Master Argument for the necessity of the future. Instead, the arguments rely entirely on semantic and logical considerations. Cicero’s On Fate, however, introduces the topics of the relationship of causal determinism to the principle of bivalence, and of whether causal determinism has fatalistic implications. In this treatise, Cicero presents the positions of Epicurus, the Academic skeptic Carneades, and the Stoic Chrysippus.