This book presents a thorough reconstruction of the late-scholastic logical treatises De Obligationibus by the methods of modern logic and set theory. It defends the view that the treatises are intended to put forward a theory of disputation. Hajo Keffer's excellent monograph is the first full-scale treatment of the complete range of medieval treatises on Obligations, from the earliest known treatises of the mid-thirteenth century through to Paul of Pergula's tract from the early fifteenth century.
Hajo Keffer, Dr. (1999) in Philosophy, University of Greifswald. He works at Medieval Philosophy, Onthology, and Formal Hermeneutics.
'Hajo Keffer's excellent monograph is the first full-scale treatment of the complete range of medieval treatises on Obligations, from the earliest known treatises of the mid-thirteenth centruy through to Paul of Pergula's tract from the early fifteenth century. Here at last is a lucid statement of the evidence to decide the vexed question of interpretation, of the real purpose of obligational disputations.
Philosophers and logicians who are interested in medieval philosophy, particularly medieval logic; or in disputation theory generally; or in the use of formal means for reconstructing classical philosophical texts.