Section Completeness.
Context `{TnEQD:Tarski_neutral_dimensionless_with_decidable_point_equality}.
(** If there exists n such that (f A) X = n times (f A) (f B), then X belongs to the image of the line extension f *)
(** If there exists n such that (f A) X = (f A) (f B) divided by 2^n, then X belongs to the image of the line extension f *)
(** Given a line extension f to a line l in an Archimedean space, the image of f is dense in l *)

Lemma dedekind_variant__completeness : dedekind_variant -> line_completeness.