(* Contribution to the Coq Library   V6.3 (July 1999)                    *)
(****************************************************************************)
(* This contribution was updated for Coq V5.10 by the COQ workgroup.        *)
(* January 1995                                                             *)
(****************************************************************************)
(*                                  ex1.v                                   *)
(****************************************************************************)

(* Specifications: *)
Theorem trivial : forall A : Prop, A -> A.
intros A H'; exact H'.