Keyphrases
- answer sets
- logic programs
- logic programs with negation
- answer set programming
- logic programming
- answer set semantics
- normal logic programs
- stable models
- fixpoint
- possibilistic logic
- extended logic programs
- computational properties
- answer set programs
- inductive logic programming
- logic program updates
- loop formulas
- disjunctive logic programming
- polynomial hierarchy
- semantics of logic programs
- answer set solvers
- horn clauses
- counter examples
- minimal models
- reasoning tasks