Section rah_existential_saccheri.
Context `{TnEQD:Tarski_neutral_dimensionless_with_decidable_point_equality}.

(* Specifications: *)
Lemma rah__existential_saccheri : postulate_of_right_saccheri_quadrilaterals -> postulate_of_existence_of_a_right_saccheri_quadrilateral.
End rah_existential_saccheri.