Exercise relationalgebra.cnf
Description
To conjunctive normal form
Derivation
V-- \/ ((s ; V-) ; (s /\ q) \/ s)-
⇒ relationalgebra.doublenegationV \/ ((s ; V-) ; (s /\ q) \/ s)-
⇒ relationalgebra.remredunexprsV
Description
To conjunctive normal form