Section Euclid.
Context `{TnEQD:Tarski_neutral_dimensionless_with_decidable_point_equality}.

Theorem stronger_postulates_bis :
stronger
(alternate_interior_angles_postulate::
alternative_playfair_s_postulate::
consecutive_interior_angles_postulate::
midpoint_converse_postulate::
perpendicular_transversal_postulate::
playfair_s_postulate::
universal_posidonius_postulate::
postulate_of_parallelism_of_perpendicular_transversals::
postulate_of_transitivity_of_parallelism::
nil)
(existential_thales_postulate::
posidonius_postulate::
postulate_of_existence_of_a_right_lambert_quadrilateral::
postulate_of_existence_of_a_right_saccheri_quadrilateral::
postulate_of_existence_of_a_triangle_whose_angles_sum_to_two_rights::
postulate_of_existence_of_similar_triangles::
postulate_of_right_lambert_quadrilaterals::
postulate_of_right_saccheri_quadrilaterals::
thales_postulate::
thales_converse_postulate::
triangle_postulate::
nil).