Require Export GeoCoq.Meta_theory.Parallel_postulates.parallel_postulates.
Require Export GeoCoq.Meta_theory.Parallel_postulates.par_trans_NID.
Section T13.
Context `{TE:Tarski_euclidean}.

Lemma cop_par__inter : forall A B C D P Q,
Par A B C D -> ~Par A B P Q -> Coplanar C D P Q ->
exists Y, Col P Q Y /\ Col C D Y.