Negation by Default and Unstratifiable Logic Programs.
Nicole BidoitChristine FroidevauxPublished in: Theor. Comput. Sci. (1991)
Keyphrases
- logic programs
- logic programs with negation
- logic programming
- stable models
- fixpoint
- answer sets
- answer set programming
- background knowledge
- computational properties
- stable model semantics
- inductive logic programming
- normal logic programs
- extended logic programs
- answer set semantics
- semantics for logic programs
- deductive databases
- term rewriting systems
- declarative semantics
- minimal models
- partial deduction
- monotonicity constraints
- prolog programs
- strong equivalence
- loop formulas
- magic sets
- answer set programs
- classical logic