proposition: Lemma H5loss_draw_loss ht i l : Hiv (i :: l) -> ht_valid ht -> f1 i = loss -> f2 eloss edraw ht i = eloss :> estate.
proof: Proof. by move/Hiv_hd=> [] [_ H _ _] _ _; apply: H. Qed.
imports: HB(structures) mathcomp(all_ssreflect) mathcomp(all_algebra)