Keyphrases
- logic programs
- logic programming
- answer sets
- answer set programming
- normal logic programs
- logic program updates
- stable models
- fixpoint
- inductive logic programming
- background knowledge
- prolog programs
- computational properties
- partial deduction
- extended logic programs
- inside outside algorithm
- stable model semantics
- loop formulas
- horn clauses
- counter examples
- existentially quantified
- n gram
- query language
- relational databases