Section Suma_2.
Context `{TnEQD:Tarski_neutral_dimensionless_with_decidable_point_equality}.
(** ABC <= ABC + DEF. *)
(** DEF <= ABC + DEF. *)

Lemma sams_suma__lea456789 : forall A B C D E F G H I, SumA A B C D E F G H I ->
SAMS A B C D E F -> LeA D E F G H I.