proposition: Lemma AHom_lker0 (rT : falgType F0) (f : 'AHom(L, rT)) : lker f == 0%VS.
proof: Proof. by apply/lker0P; apply: fmorph_inj. Qed.
imports: HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat seq div) mathcomp(choice fintype tuple finfun bigop ssralg countalg) mathcomp(finalg zmodp matrix vector falgebra poly polydiv) mathcomp(mxpoly generic_quotient)