Radulphus Brito's 'Quaestiones super Priora Analytica Aristotelis' is a major work written in the early 1300s which treated Aristotle's text devoted to the theory of the syllogism. Brito, perhaps one of the most influential medieval thinkers known as the Modistae, examines both categorical and hypothetical syllogisms. In his text, based on six known manuscripts which are complete or nearly complete, Brito was critical of many of the theories of his contemporary, Simon of Faversham. It should also be mentioned that Brito edited his work several times. There are at least two versions which indicate Brito returned to this material during his long career at the university in Paris. This volume is the first critical text edition of Brito's 'Quaestiones super Priora Analytica Aristotelis' and will therefore be of great interest to those studying the history of logic and its development during the medieval period.

The history of logic and its development during the medieval period Radulphus Brito’s Quaestiones super Priora Analytica Aristotelis is a major work written in the early 1300s which treated Aristotle’s text devoted to the theory of the syllogism. Brito, perhaps one of the most influential medieval thinkers known as the Modistae, examines both categorical and hypothetical syllogisms. In his text, based on six known manuscripts which are complete or nearly complete, Brito was critical of many of the theories of his contemporary, Simon of Faversham. It should also be mentioned that Brito edited his work several times. There are at least two versions which indicate Brito returned to this material during his long career at the university in Paris. This volume is the first critical text edition of Brito’s Quaestiones super Priora Analytica Aristotelis and will therefore be of great interest to those studying the history of logic and its development during the medieval period.

In the Posterior Analytics Aristotle contrasts demonstrations with syllogisms through signs. In the Prior Analytics he defines a sign as a demonstrative premise. One is thus led to ask: is a sign a demonstration? This book reconstructs the history of the notion of “demonstration through signs” from roughly the third through to the thirteenth century. It examines the work of Aristotle’s Greek, Arabic, and Latin commentators, both within and outside the tradition of the Posterior Analytics.

Paul Thom’s book presents Kilwardby’s science of logic as a body of demonstrative knowledge about inferences and their validity, about the semantics of non-modal and modal propositions, and about the logic of genus and species. This science is thoroughly intensional. It grounds the logic of inference on that in virtue of which the inference holds. It bases the truth conditions of propositions on relations between conceptual entities. It explains the logic of genus and species through the notion of essence. Thom interprets this science as a formal logic of intensions with its own proof theory and semantics. This comprehensive reconstruction of Kilwardby’s logic shows the medieval master to be one of the most interesting logicians of the thirteenth century.

In this book, the medieval development of Aristotle's theory of the modal syllogistic is studied for the first time. The book shows how this previously ignored part of medieval logic may give new insights into several areas of medieval philosophy.

This volume features essays that explore the insights of the 14th-century Parisian nominalist philosopher, John Buridan. It serves as a companion to the Latin text edition and annotated English translation of his question-commentary on Aristotle’s On the Soul. The contributors survey Buridan’s work both in its own historical-theoretical context and in relation to contemporary issues. The essays come in three main sections, which correspond to the three books of Buridan’s Questions. Coverage first deals with the classification of the science of the soul within the system of Aristotelian sciences, and surveys the main issues within it. The next section examines the metaphysics of the soul. It considers Buridan’s peculiar version of Aristotelian hylomorphism in dealing with the problem of what kind of entity the soul (in particular, the human soul) is, and what powers and actions it has, on the basis of which we can approach the question of its essence. The volume concludes with a look at Buridan’s doctrine of the nature and functions of the human intellect. Coverage in this section includes the problem of self-knowledge in Buridan’s theory, Buridan’s answer to the traditional medieval problem concerning the primary object of the intellect, and his unique treatment of logical problems in psychological contexts.

The papers in this volume - written by well-known experts in the field - examine the rules for valid argument discovered and formulated in the works of medieval scholasticism and show their significance to modern discussions in logic and the philosophy of language. The editor's introductions make the papers interesting and comprehensible even to non-specialists.