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    STUDIA INFORMATICA - Issue no. 2 / 2006  
         
  Article:   SEQUENT CALCULUS IN COMPUTING DEFAULT EXTENSIONS.

Authors:  MIHAIELA LUPEA.
 
       
         
  Abstract:  Justified and constrained default logics are the versions of default logic that have the property of semi-monotonicity. Based on this property, in this paper we present an iterative approach of the problem of computing the justified and constrained extensions of a propositional default theory. The sequent calculus and its complementary system, the antisequent calculus, are used to check the cautious applicability condition for defaults.  
         
     
         
         
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