Section existential_saccheri_rah.
Context `{TnEQD:Tarski_neutral_dimensionless_with_decidable_point_equality}.

Lemma existential_saccheri__rah : postulate_of_existence_of_a_right_saccheri_quadrilateral -> postulate_of_right_saccheri_quadrilaterals.
End existential_saccheri_rah.