proposition: Lemma divzK d m : (d %| m)%Z -> (m %/ d)%Z * d = m.
proof: Proof. by rewrite dvdz_eq => /eqP. Qed.
imports: HB(structures) mathcomp(ssreflect ssrbool ssrfun eqtype ssrnat seq path) mathcomp(div choice fintype tuple finfun bigop prime order) mathcomp(ssralg poly ssrnum ssrint archimedean rat matrix) mathcomp(polydiv perm zmodp mxalgebra vector)