(** This is AAS congruence. *)

(* Specifications: *)
Lemma l11_50_2  : forall A B C A' B' C',
~ Col A B C -> CongA B C A B' C' A' -> CongA A B C A' B' C' -> Cong A B A' B' ->
Cong A C A' C' /\ Cong B C B' C' /\ CongA C A B C' A' B'.