Section T6_1.
Context `{TnEQD:Tarski_neutral_dimensionless_with_decidable_point_equality}.
(** out reflexivity. l6_5 *)
(** out symmetry. *)
(** out transitivity. *)

Lemma out2_bet_out : forall A B C X P,
Out B A C -> Out B X P -> Bet A X C -> Out B A P /\ Out B C P.