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 le3456_lt__lt : forall A B C D E F, Lt A B C D -> Le C D E F -> Lt A B E F.