proposition: Lemma mx_star_block_make_left x n: forall M: MX (x+n) (x+n), 1 + mx_star_block M * M == mx_star_block M.
proof: Proof. apply build_star_make_left; intro; rapply mx_star_make_left. Qed.
imports: ATBR(Common) ATBR(Classes) ATBR(Graph) ATBR(Monoid) ATBR(SemiLattice) ATBR(SemiRing) ATBR(KleeneAlgebra) ATBR(MxGraph) ATBR(MxSemiLattice) ATBR(MxSemiRing)