Keyphrases
- logic programs
- horn clauses
- logic programming
- answer sets
- np hard
- fixpoint
- stable models
- computational properties
- inductive logic programming
- answer set programming
- background knowledge
- partial deduction
- logic program updates
- term rewriting systems
- prolog programs
- propositional logic
- existentially quantified
- normal logic programs
- stable model semantics
- reasoning tasks
- nonmonotonic reasoning
- minimal models
- autoepistemic logic
- high level