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Journal of Logic and Computation Advance Access originally published online on February 15, 2008
Journal of Logic and Computation 2008 18(5):739-753; doi:10.1093/logcom/exm093
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© The Author, 2008. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

This article appears in the following Journal of Logic and Computation issue: Special Issue: Belief Revision in Rational Agents [View the issue table of contents]

Original Articles

An Axiomatic Characterization of Ensconcement-Based Contraction

Eduardo Fermé

Departamento de Matemática e Engenharias - Universidade da Madeira Campus Universitário da Penteada, 9000-390 Funchal Portugal. E-mail: ferme{at}uma.pt

Martín Krevneris

Gestion-Digital, Buenos Aires, Argentina. E-mail: mkrev{at}gestion-digital.com.ar

Maurício Reis

Departamento de Matemática e Engenharias - Universidade da Madeira Campus Universitário da Penteada, 9000-390 Funchal Portugal. E-mail: m_reis{at}uma.pt

Received 1 December 2007.


  Abstract

In this article, we propose an axiomatic characterization for ensconcement-based contraction functions, belief base functions proposed by Williams. We relate this function with other kinds of base contraction functions.

Keywords: Logic of theory change; belief bases; base contraction; ensconcement


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