Exercise relationalgebra.cnf

Description
To conjunctive normal form

Derivation

Final term is not finished

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

⇒ relationalgebra.remredunexprs

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

⇒ relationalgebra.remredunexprs

V \/ V-- /\ s-

⇒ relationalgebra.doublenegation

V \/ V /\ s-

⇒ relationalgebra.remredunexprs

V \/ s-