This book makes available for the first time an English translation of William Ockham's work on Aristotle's "Posterior Analytics," which contains his theory of scientific demonstration and philosophy of science. John Lee Longeway also includes an extensive commentary and a detailed history of the intellectual background to Ockham's work in the Latin Middle Ages. Longeway puts Ockham into context by providing a scholarly account of the reception and study of the "Posterior Analytics" in the Latin Middle Ages, with a detailed discussion of Robert Grosseteste, Albert the Great, Thomas Aquinas,...