Susanne Bobzien

"Determinism and Freedom in Stoic Philosophy is the first comprehensive study of one of the most important intellectual legacies of the ancient Greek world: the Stoic theory of causal determinism. The book identifies the main problems that the Stoics addressed and reconstructs the theory, and explores how they squared their determinism with their conceptions of possibility, action, freedom, and moral responsibility, and how they defended it against objections and criticism by other philosophers."--Jacket.

This book is the first, and so far only, monograph on Stoic modal logic. Part 1 discusses the Stoic notion of propositions (assertibles, axiomata): their definition; their truth-criteria; the relation between sentence and proposition; propositions that perish; propositions that change their truth-value; the temporal dependency of propositions; the temporal dependency of the Stoic notion of truth; pseudo-dates in propositions. Part 2 discusses Stoic modal logic: the Stoic definitions of their modal notions (possibility, impossibility, necessity, non-necessity); the logical relations between the modalities; modalities as properties of propositions; contingent propositions; the relation between the Stoic modal notions and those of Diodorus Cronus and Philo of Megara; the role of ‘external hindrances’ for the modalities; the temporal dependency of the modalities; propositions that change their modalities; the principle that something possible can follow from something impossible; the interpretations of the Stoic modal system by B. Mates, M. Kneale, M. Frede, J. Vuillemin and M. Mignucci are evaluated.

The sixteen essays written in honour of Jonathan Barnes for this volume reflect the impressive scope of his contributions to philosophy. Six are on knowledge, five on logic and metaphysics, five on ethics. The volume ranges widely over ancient philosophy, while also finding room for for two contemporary papers on truth (by I.Rumfitt) and vagueness (by S.Bobzien). Aristotle is prominent in eight of the essays; Plato, Sextus Empiricus, the Stoics, the Epicureans, and ancient Greek medical writers are also discussed. The contributors include some of the most distinguished scholars of our time.