Abstract

This article aims to reveal the theory of the modality of the Megarian school of philosophy especially based on the concept of possibility. The Megarian school founded by Eukleides and shaped by the teachings of Socrates and Parmenides. One of the most important contributions of the school to the history of philosophy is the theory of modality of its members. The idea of the possibility of the first Megarians reached us through Aristotle. The Megarian and Aristotelian understandings of the concept possibility are in conflict. This conflict continued via the Master Argument of Diodorus Cronus, in the later period of the school. The conception of the modality of the Philo of Megara, who is a pupil of Diodorus, has some similarities with Aristotle's.