Exercise relationalgebra.cnf

Description
To conjunctive normal form

Derivation

(V- ; s)- \/ (V- ; (s /\ q) \/ s)-

⇒ relationalgebra.remredunexprs

V-- \/ (V- ; (s /\ q) \/ s)-

⇒ relationalgebra.doublenegation

V \/ (V- ; (s /\ q) \/ s)-

⇒ relationalgebra.remredunexprs

V