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STACS
2009
Springer
14 years 2 months ago
Strong Completeness of Coalgebraic Modal Logics
ABSTRACT. Canonical models are of central importance in modal logic, in particular as they witness strong completeness and hence compactness. While the canonical model construction...
Lutz Schröder, Dirk Pattinson
LICS
2012
IEEE
11 years 9 months ago
Countermodels from Sequent Calculi in Multi-Modal Logics
—A novel countermodel-producing decision procedure that applies to several multi-modal logics, both intuitionistic and classical, is presented. Based on backwards search in label...
Deepak Garg, Valerio Genovese, Sara Negri
PODS
1989
ACM
129views Database» more  PODS 1989»
13 years 11 months ago
The Alternating Fixpoint of Logic Programs with Negation
The alternating xpoint of a logic program with negation is de ned constructively. The underlying idea is monotonically to build up a set of negative conclusions until the least xp...
Allen Van Gelder
AAAI
1998
13 years 8 months ago
Fixpoint 3-Valued Semantics for Autoepistemic Logic
The paper presents a constructive 3-valued semantics for autoepistemic logic (AEL). We introduce a derivation operator and de ne the semantics as its least xpoint. The semantics is...
Marc Denecker, V. Wiktor Marek, Miroslaw Truszczyn...
AGP
1993
IEEE
13 years 11 months ago
A Note on Logic Programming Fixed-Point Semantics
In this paper, we present an account of classical Logic Programming fixed-point semantics in terms of two standard categorical constructions in which the least Herbrand model is ...
Vladimiro Sassone