Exercise relationalgebra.cnf

Description
To conjunctive normal form

Derivation

((V- ; s) /\ (V- ; (s /\ q) \/ s))-
relationalgebra.remredunexprs
(V- /\ (V- ; (s /\ q) \/ s))-
relationalgebra.remredunexprs
V--
relationalgebra.doublenegation
V