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

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