proposition: Lemma TCong_neq_Cong : forall A B C D, A<>B -> TCong A B C D -> Cong A B C D.
proof: Proof. intros. destruct H0. assumption. intuition. Qed.
imports: GeoCoq.Axioms.tarski_axioms GeoCoq.Elements.OriginalProofs.proposition_01 GeoCoq.Elements.OriginalProofs.lemma_congruenceflip GeoCoq.Elements.OriginalProofs.lemma_extension Classical