Require Export GeoCoq.Tarski_dev.Ch10_line_reflexivity.
Section T10_1.
Context `{TnEQD:Tarski_neutral_dimensionless_with_decidable_point_equality}.

Lemma l10_10 : forall A B P Q P' Q',
Reflect P' P A B -> Reflect Q' Q A B ->
Cong P Q P' Q'.