- renamed ocaml/ to components/

[helm.git] / helm / ocaml / tactics / negationTactics.ml

diff --git a/helm/ocaml/tactics/negationTactics.ml b/helm/ocaml/tactics/negationTactics.ml
deleted file mode 100644 (file)
index 7ee79e5..0000000
--- a/helm/ocaml/tactics/negationTactics.ml
+++ /dev/null
@@ -1,88 +0,0 @@
-(* Copyright (C) 2002, HELM Team.
- *
- * This file is part of HELM, an Hypertextual, Electronic
- * Library of Mathematics, developed at the Computer Science
- * Department, University of Bologna, Italy.
- *
- * HELM is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * HELM is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with HELM; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
- * MA  02111-1307, USA.
- *
- * For details, see the HELM World-Wide-Web page,
- * http://cs.unibo.it/helm/.
- *)
-
-(* $Id$ *)
-
-let absurd_tac ~term =
- let absurd_tac ~term status =
-  let (proof, goal) = status in
-  let module C = Cic in
-  let module U = UriManager in
-  let module P = PrimitiveTactics in
-  let _,metasenv,_,_ = proof in
-  let _,context,ty = CicUtil.lookup_meta goal metasenv in
-  let ty_term,_ = 
-    CicTypeChecker.type_of_aux' metasenv context term CicUniv.empty_ugraph in
-    if (ty_term = (C.Sort C.Prop)) (* ma questo controllo serve?? *)
-    then ProofEngineTypes.apply_tactic 
-      (P.apply_tac 
-         ~term:(
-           C.Appl [(C.Const (LibraryObjects.absurd_URI (), [] )) ; 
-                  term ; ty])
-      ) 
-      status
-    else raise (ProofEngineTypes.Fail (lazy "Absurd: Not a Proposition"))
- in
-   ProofEngineTypes.mk_tactic (absurd_tac ~term)
-;;
-
-(* FG: METTERE I NOMI ANCHE QUI? CSC: in teoria si', per la intros*)
-let contradiction_tac =
- let contradiction_tac status =
-  let module C = Cic in
-  let module U = UriManager in
-  let module P = PrimitiveTactics in
-  let module T = Tacticals in
-   try
-    ProofEngineTypes.apply_tactic (
-     T.then_
-      ~start:(P.intros_tac ())
-      ~continuation:(
-        T.then_
-           ~start:
-             (EliminationTactics.elim_type_tac 
-                (C.MutInd (LibraryObjects.false_URI (), 0, [])))
-           ~continuation: VariousTactics.assumption_tac))
-    status
-   with 
-    ProofEngineTypes.Fail msg when Lazy.force msg = "Assumption: No such assumption" -> raise (ProofEngineTypes.Fail (lazy "Contradiction: No such assumption"))
-    (* sarebbe piu' elegante se Assumtion sollevasse un'eccezione tutta sua che questa cattura, magari con l'aiuto di try_tactics *)
- in 
-  ProofEngineTypes.mk_tactic contradiction_tac
-;;
-
-(* Questa era in fourierR.ml
-(* !!!!! fix !!!!!!!!!! *)
-let contradiction_tac (proof,goal)=
-        Tacticals.then_
-                ~start:(PrimitiveTactics.intros_tac ~name:"bo?" ) (*inutile sia questo che quello prima  della chiamata*)
-                ~continuation:(Tacticals.then_
-                        ~start:(VariousTactics.elim_type_tac ~term:_False)
-                        ~continuation:(assumption_tac))
-        (proof,goal)
-;;
-*)
-
-