proposition: Lemma dvdr_lcmr a b : b %| lcmr a b.
proof: Proof. by move: (dvdrr (lcmr a b)); rewrite dvdr_lcm; case/andP. 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