proposition: Lemma dvd0z n : (0 %| n)%Z = (n == 0).
proof: Proof. by rewrite -absz_eq0 -dvd0n. 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)