Keyphrases
- normal logic programs
- logic programs
- logic programming
- stable models
- fixpoint
- semantics for logic programs
- situation calculus
- background knowledge
- horn clauses
- answer set semantics
- default reasoning
- stable model semantics
- answer sets
- declarative semantics
- answer set programming
- logic programs with negation
- deductive databases
- nonmonotonic reasoning
- classification rules
- artificial intelligence
- databases
- knowledge representation and reasoning
- programming language
- relational databases
- natural language
- high level