proposition: Lemma mx_of_scal_dot: forall a b: X A A, mx_of_scal a * mx_of_scal b == mx_of_scal (a*b).
proof: Proof. repeat intro; simpl. trivial with algebra. Qed.
imports: ATBR(Common) ATBR(Classes) ATBR(Graph) ATBR(Monoid) ATBR(SemiLattice) ATBR(SemiRing) ATBR(MxGraph) ATBR(MxSemiLattice) ATBR(BoolView)