Commitment in Dialogue: Basic Concepts of Interpersonal Reasoning (Logic and Language

by Douglas N. Walton

This book develops a logical analysis of dialogue in which two or more parties attempt to advance their own interests. It includes a classification of the major types of dialogues and a discussion of several important informal fallacies. The authors define the concept of commitment in a way that makes it useful in evaluating arguments. In traditional logic, a proposition is either true or false, and that is the end of it. In this new framework, an arguer can be held to his or her commitments in some cases, but in other cases, he or she can retract them without violating any rule of the dialogue. Commitment in Dialogue studies the conditions under which commitments should be held or may be retracted within an argument. An extensive case study of a discussion in medical ethics is used to bring together two traditions or schools of thought that had not been integrated previously--the rigorous Lorenzen school of formal logic, and the more permissive Hamblin-style dialogue. It introduces these methods of evaluation and offers guidelines for analyzing the text of discourse. The book could be used in both intermediate and advanced courses in informal logic, argumentation, and critical thinking, but it is accessible to the reader with no background in these fields as well. Each chapter is summarized, and additional problems to be solved are presented.

Hardcover

First published August 1, 1995

About the author

Douglas Neil Walton (PhD University of Toronto, 1972) is a Canadian academic and author, well known for his many widely published books and papers on argumentation, logical fallacies and informal logic. He is presently Distinguished Research Fellow of the Centre for Research in Reasoning, Argumentation, and Rhetoric (CRRAR) at the University of Windsor, Canada, and before that (2008-2014), he held the Assumption Chair of Argumentation Studies at the University of Windsor. Walton’s work has been used to better prepare legal arguments and to help develop artificial intelligence. His books have been translated worldwide, and he attracts students from many countries to study with him. A special issue of the journal Informal Logic surveyed Walton’s contributions to informal logic and argumentation theory up to 2006 (Informal Logic, 27(3), 2007). A festschrift honoring his contributions, Dialectics, Dialogue and Argumentation: An Examination of Douglas Walton’s Theories of Reasoning and Argument, ed. C. Reed and C. W. Tindale, London: College Publications, 2010, shows how his theories are increasingly finding applications in computer science. A list of titles of many of Walton’s books is given below. Links to preprints of many of his published papers can be found on the website

http://www.dougwalton.ca