Require Export GeoCoq.Tarski_dev.Annexes.saccheri.
Section Defect.
Context `{TnEQD:Tarski_neutral_dimensionless_with_decidable_point_equality}.

Lemma defect_ncol_out__rah : forall A B C D E F,
~ Col A B C -> Defect A B C D E F -> Out E D F ->
hypothesis_of_right_saccheri_quadrilaterals.