Keyphrases
- logic programs
- logic programming
- answer sets
- stable models
- fixpoint
- background knowledge
- answer set programming
- partial deduction
- normal logic programs
- computational properties
- prolog programs
- inductive logic programming
- horn clauses
- stable model semantics
- logic program updates
- deductive databases
- functional programs
- strong equivalence
- existentially quantified
- term rewriting systems