Contextual Deliberation of Cognitive Agents in Defeasible Logic M. Dastani University of Utrecht, Utrecht, The Netherlands G. Governatori School of ITEE, The University of Queensland, Brisbane, Australia A. Rotolo CIRSFID, University of Bologna, Bologna, Italy I. Song School of ITEE, The University of Queensland, Brisbane, Australia L. van der Torre University of Luxembourg, Luxembourg pdflogo.jpg AAMAS07_0218_1d2a7ca5eb7a0fcc3c33678d3ea019b8