fact: Definition InCirc P (J:Tcircle) := match J with (C,A,B) => exists X Y, Definitions.BetS X C Y /\ tarski_axioms.Cong C Y A B /\ tarski_axioms.Cong C X A B /\ Definitions.BetS X P Y end.
imports: GeoCoq.Tarski_dev.Ch12_parallel GeoCoq.Axioms.euclidean_axioms GeoCoq.Axioms.continuity_axioms GeoCoq.Meta_theory.Continuity.elementary_continuity_props GeoCoq.Meta_theory.Parallel_postulates.parallel_postulates