A Multimodal Logic Approach to Order of Magnitude Qualitative Reasoning with Comparability and Negligibility Relations

Article type: Research Article

Authors: Burrieza, Alfredo | Ojeda-Aciego, Manuel

Affiliations: Department Filosofía. Universidad de Málaga. Spain. E-mail: burrieza@uma.es | Department Matemática Aplicada. Universidad de Málaga. Spain. E-mail: aciego@ctima.uma.es

Abstract: Non-classical logics have proven to be an adequate framework to formalize knowledge representation. In this paper we focus on a multimodal approach to formalize order-of-magnitude qualitative reasoning, extending the recently introduced system MQ, by means of a certain notion of negligibility relation which satisfies a number of intuitively plausible properties, as well as a minimal axiom system allowing for interaction among the different qualitative relations. The main aim is to show the completeness of the formal system introduced. Moreover, we consider some definability results and discuss possible directions for further research.

Keywords: multimodal logics, non-classical logics, order-of-magnitude qualitative reasoning

Journal: Fundamenta Informaticae, vol. 68, no. 1-2, pp. 21-46, 2005