+++ /dev/null
-(**************************************************************************)
-(* ___ *)
-(* ||M|| *)
-(* ||A|| A project by Andrea Asperti *)
-(* ||T|| *)
-(* ||I|| Developers: *)
-(* ||T|| The HELM team. *)
-(* ||A|| http://helm.cs.unibo.it *)
-(* \ / *)
-(* \ / This file is distributed under the terms of the *)
-(* v GNU General Public License Version 2 *)
-(* *)
-(**************************************************************************)
-
-set "baseuri" "cic:/matita/tests/contradiction".
-include "legacy/coq.ma".
-alias id "True" = "cic:/Coq/Init/Logic/True.ind#xpointer(1/1)".
-alias id "not" = "cic:/Coq/Init/Logic/not.con".
-alias num (instance 0) = "natural number".
-alias symbol "eq" (instance 0) = "Coq's leibnitz's equality".
-
-
-
-theorem stupid: \forall a:Prop. a \to not a \to 0 = 2.
-intros.
-letin H \def (H1 H).
-contradiction.
-qed.
-
-
-