Duality between Addition and Removal - A Tool for Studying Change in Argumentation

Pierre Bisquert, Claudette Cayrol, Florence Dupin de Saint-Cyr, Marie-Christine Lagasquie-Schiex

Abstract: In this paper, we address a new problem in the field of argumentation theory: the link between two different change operations, namely addition and removal of an argument. We define two concepts of duality reflecting this link. They are used to propose new results about an operation from existing results concerning its dual operation. Finally, the propositions that are obtained are studied for characterizing the change operations.