Section thales_postulate_thales_converse_postulate.
Context `{TnEQD:Tarski_neutral_dimensionless_with_decidable_point_equality}.
(** This comes from the proof of Martin's Theorem 23.7 (N -> O) *)

Lemma thales_postulate__thales_converse_postulate : thales_postulate -> thales_converse_postulate.