Section T6_2.
Context `{TnEQD:Tarski_neutral_dimensionless_with_decidable_point_equality}.
(* Lemma t2_8 : forall A B C D E : Tpoint, Bet A B C -> Bet D B E -> Cong A B D B -> Cong B C B E -> Cong A E C D. *)

Lemma bet2_le2__le2356 : forall A B C A' B' C', Bet A B C -> Bet A' B' C' ->
Le A B A' B' -> Le A' C' A C -> Le B' C' B C.