Require Export GeoCoq.Meta_theory.Decidability.equivalence_between_decidability_properties_of_basic_relations.
Section T5.
Context `{TnEQD:Tarski_neutral_dimensionless_with_decidable_point_equality}.

Lemma bet_cong_eq :
forall A B C D,
Bet A B C ->
Bet A C D ->
Cong B C A D ->
C = D /\ A = B.