proposition: Lemma aimg1 (f : ahom aT rT) : (f @: 1 = 1)%VS.
proof: Proof. by rewrite limg_line rmorph1. Qed.
imports: HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat seq path) mathcomp(choice fintype div tuple finfun bigop ssralg) mathcomp(finalg zmodp matrix vector poly)