In this paper I shall survey some of the main areas of recent research on the logic of the Middle Ages. A large and flourishing body of scholars is now actively at work in this field; interest in the topic is no longer by any means confined to a relatively small group of specialists. Perhaps the most characteristic feature of this recent research is the symbiotic relationship between pure historical and textual scholarship of the highest quality -the edition of texts, the identification of authors and their sources, the establishment of their interrelations-and the critically exegetical work of scholars familiar with the results and techniques of modern logic and analytic philosophy. This fruitful relationship has begun to make the immense field of medieval logic accessible not only to specialized medievalists but also to the philosophical profession at large.
Although it is impossible to date the beginning of this collaboration with any precision, it had taken hold firmly by about 1960. At that time, thanks to the work of Bochefiski, Boehner and Moody, among others, medieval logic had been established as a rich and sophisticated field worthy of serious study. But this claim was not established without resistance. For many years, students of medieval philosophy had concentrated mainly on issues in metaphysics and epistemology. There were perhaps several reasons for this -the sociology of the revival of medieval studies in Europe and America, the preeminence of Thomas Aquinas until recently in the intellectual life of the Catholic Church, and so on. Whatever the reasons, historians of medieval philosophy tended to focus on the great metaphysical and epistemological questions, and largely overlooked medieval work in other areas of philosophy.
Of course there had been some scattered interest in medieval logic all along.