proposition: Lemma eqd_dvdl b a c : a %= b -> (a %| c) = (b %| c).
proof: Proof. by move/eqd_dvd; apply. Qed.
imports: HB(structures) Coq(ssreflect ssrfun ssrbool Arith.Wf_nat) mathcomp(eqtype ssrnat div seq path) mathcomp(ssralg fintype perm tuple choice generic_quotient) mathcomp(matrix bigop zmodp mxalgebra poly) stronglydiscrete