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LOPSTR
1999
Springer
14 years 1 days ago
Roles of Program Extension
Abstract. A formal and effective approach to the extension of the computational behaviour of logic programs is presented. The approach builds upon the following concepts. The exte...
Ralf Lämmel, Günter Riedewald, Wolfgang ...
CALCO
2005
Springer
98views Mathematics» more  CALCO 2005»
14 years 1 months ago
Behavioral Extensions of Institutions
We show that any institution I satisfying some reasonable conditions can be transformed into another institution, Ibeh, which captures formally and abstractly the intuitions of add...
Andrei Popescu, Grigore Rosu
ITRUST
2005
Springer
14 years 1 months ago
A Representation Model of Trust Relationships with Delegation Extensions
Abstract. Logic languages establish a formal framework to solve authorization and delegation conflicts. However, we consider that a visual representation is necessary since graphs...
Isaac Agudo, Javier Lopez, José A. Monteneg...
EATCS
2000
85views more  EATCS 2000»
13 years 7 months ago
A New Zero-One Law and Strong Extension Axioms
One of the previous articles in this column was devoted to the zero-one laws for a number of logics playing prominent role in finite model theory: first-order logic FO, the extens...
Andreas Blass, Yuri Gurevich
AIML
2006
13 years 9 months ago
Bisimulation Quantified Modal Logics: Decidability
Bisimulation quantifiers are a natural extension of modal logics. They preserve the bisimulation invariance of modal logic, while allowing monadic second-order expressivity. Unfort...
Tim French