@Proceedings{DBLP:conf/ecsqaru/1995,
  Title                    = {Symbolic and Quantitative Approaches to Reasoning and Uncertainty, European Conference, ECSQARU'95, Fribourg, Switzerland, July 3-5, 1995, Proceedings},
  Year                     = {1995},
  Editor                   = {Christine Froidevaux and J{\"u}rg Kohlas},
  Publisher                = {Springer},
  Series                   = {Lecture Notes in Computer Science},
  Volume                   = {946},

  Bibsource                = {DBLP, http://dblp.uni-trier.de},
  Booktitle                = {ECSQARU},
  ISBN                     = {3-540-60112-0}
}
@InProceedings{DBLP:conf/ecsqaru/TanT95,
  Title                    = {Why Defeasible Deontic Logic needs a Multi Preference Semantics},
  Author                   = {Yao-Hua Tan and Leendert W. N. van der Torre},
  Booktitle                = {ECSQARU},
  Year                     = {1995},
  Pages                    = {412-419},

  Abstract                 = {There is a fundamental difference between a conditional obligation being violated by a fact, and a conditional obligation being overridden by another conditional obligation. In this paper we propose a multi preference semantics for a defeasible deontic logic that is based on this fundamental difference. The semantics contains one preference relation for ideality, which can be used to formalize deontic `paradoxes' like the Chisholm and Forrester `Paradoxes', and another preference relation for normality, which can be used to formalize exceptions. The interference of the two preference orderings generates new questions about preferential semantics. },
  Bibsource                = {DBLP, http://dblp.uni-trier.de},
  Crossref                 = {DBLP:conf/ecsqaru/1995},
  Ee                       = {http://dx.doi.org/10.1007/3-540-60112-0_47},
  Url                      = {http://icr.uni.lu/leonvandertorre/papers/ecsqaru95.ps.Z}
}