Predicate Logic

Substitution and Unification
Resolution rule:
1. Verify the difference of variable name between
two clauses.
2. Find mgu, θ, for: {L 1, L 2, .., L k , M 1, M 2, .., M n }
3. Apply θ into C và D.
4. Compute: N = L 1 θ
5. Remove N from Cθ
6. Remove ¬N from Dθ
7. Compute union of 5 and 6, and result resovant.
Artificial Intelligence: Predicate Logic Slide: 73