_ Source: _Volume 53, Issue 2-4, pp 353 - 371 While agreeing with Professor D’Ors’ thesis that the notion of logical consequence cannot be exhaustively characterized, I depart from Professor d’Ors’ conclusion that the very notion of good consequence is primitive and can only be identified with the set of acceptable rules of inference, and from his conviction that modal notions such as necessity and impossibility are equivocal and gain such clarity as they have by their interaction with rules of (...) inference. Inspired by this picture, Professor d’Ors undertook an examination of a number of medieval attempts to analyze the notion of consequence and tried to show how certain developments in the medieval history of logic made sense in the light of debate over such analyses. This paper examines a small fragment of Professor d’Ors programme and its relation to some aspects of Jean Buridan’s account of the consequence relation. (shrink)
Prof. Pasnau’s remarkable book offers an exciting integration of medieval and early modern philosophy. It begins, however, in mediis rebus and so downplays the role that a particularly Nominalist tradition plays in explaining the abandonment of substantial form rise of the mechanical philosophy. This paper attempts to sketch some of that role.
It is often said that an argument is valid if and only if it is impossible for its premises to be jointly true and its conclusion false. Usually there is little harm in saying this but it places the concept of truth at the very heart of logic and, given how complex and obscure that concept is, one might wonder if trouble arises from this.It does — in at least two contexts. One of these was explored in the first half (...) of the fourteenth century by Jean Buridan and by the mysterious figure known as the Pseudo-Scotus of the Questions on the Prior Analytics printed in the edition of Scotus's works edited by Luke Wadding. Buridan thought that the bearers of truth were particular sentence-tokens; he thought of truth as a .. (shrink)
For nearly four centuries Peter of Spain's influential Summaries of Logic was the basis for teaching logic; few university texts were read by more people. This new translation presents the Latin and English on facing pages, and comes with an extensive introduction, chapter-by-chapter analysis, notes, and a full bibliography.
Throughout her wide-ranging study of methods, concepts, and controversies in the life sciences in Germany around 1800, Joan Steigerwald handles an astonishing variety of sources with insight and verve. The story she tells, in both its sweep and its details, challenges entrenched habits and comfortable assumptions of the existing literature and deepens our understanding of the relevant topics, figures, and debates.The book has a substantial introduction, six chapters, and a brief conclusion. The introduction addresses both general and topic-specific historiological concerns, (...) situating this history in the context of other recent work in science studies and cultural history. The first chapter covers late... (shrink)