The "Posterior Analytics" contains some of Aristotle's most influential thoughts in logic, epistemology, metaphysics and the philosophy of science. The first book expounds and develops the notions of a demonstrative argument, and of a formal, axiomatized science. The second discusses a cluster of problems raised by the axioms of principles of such a science, and investigates in particular the theory of definition. This volume, like the others in the "Clarendon Aristotle" series, is intended to serve the needs of readers of Aristotle without a knowledge of Greek. For this second edition the translation has been completely rewritten, with the aims of greater elegance and greater fidelity to the Greek. The commentary elucidates and assesses Aristotle's arguments from a philosophical point of view. It has been extensively revised to take account of the scholarship of the last 20 years.
