Global Instance independent_Tarski_neutral_dimensionless_follows_from_Hilbert :
  Gupta_inspired_variant_of_Tarski_neutral_dimensionless_with_decidable_point_equality.Global Instance H_to_T : Tarski_neutral_dimensionless.Global Instance H_to_T_PED :
  Tarski_neutral_dimensionless_with_decidable_point_equality H_to_T.

Lemma coplanar_plane1 : forall A B C D X, (Bet A B X \/ Bet B X A \/ Bet X A B) -> (Bet C D X \/ Bet D X C \/ Bet X C D) -> exists p, IncidP A p /\ IncidP B p /\ IncidP C p /\ IncidP D p.