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_plane0 : forall A B C D X, ColH A B X -> ColH C D X -> exists p, IncidP A p /\ IncidP B p /\ IncidP C p /\ IncidP D p.