transcript: we now check for non-existing objects

[helm.git] / helm / software / matita / contribs / procedural / Coq / Logic / ChoiceFacts.mma

diff --git a/helm/software/matita/contribs/procedural/Coq/Logic/ChoiceFacts.mma b/helm/software/matita/contribs/procedural/Coq/Logic/ChoiceFacts.mma
index 83fa4cff05b1a000658406d18b7ea4d0faf957e3..0c6e5f576db0ab75b0316e0e72ad50f8f6a43a10 100644 (file)
--- a/helm/software/matita/contribs/procedural/Coq/Logic/ChoiceFacts.mma
+++ b/helm/software/matita/contribs/procedural/Coq/Logic/ChoiceFacts.mma
@@ -16,28 +16,28 @@
 
 include "Coq.ma".
 
-(*#**********************************************************************)
+(*#***********************************************************************)
 
-(*  v      *   The Coq Proof Assistant  /  The Coq Development Team    *)
+(*  v      *   The Coq Proof Assistant  /  The Coq Development Team     *)
 
-(* <O___,, *        INRIA-Rocquencourt  &  LRI-CNRS-Orsay              *)
+(* <O___,, * CNRS-Ecole Polytechnique-INRIA Futurs-Universite Paris Sud *)
 
-(*   \VV/  *************************************************************)
+(*   \VV/  **************************************************************)
 
-(*    //   *      This file is distributed under the terms of the      *)
+(*    //   *      This file is distributed under the terms of the       *)
 
-(*         *       GNU Lesser General Public License Version 2.1       *)
+(*         *       GNU Lesser General Public License Version 2.1        *)
 
-(*#**********************************************************************)
+(*#***********************************************************************)
 
-(*i $Id: ChoiceFacts.v,v 1.7 2003/12/24 10:27:05 barras Exp $ i*)
+(*i $Id: ChoiceFacts.v,v 1.7.2.2 2004/08/01 09:29:59 herbelin Exp $ i*)
 
-(* We show that the functional formulation of the axiom of Choice
+(*#* We show that the functional formulation of the axiom of Choice
    (usual formulation in type theory) is equivalent to its relational
    formulation (only formulation of set theory) + the axiom of
    (parametric) definite description (aka axiom of unique choice) *)
 
-(* This shows that the axiom of choice can be assumed (under its
+(*#* This shows that the axiom of choice can be assumed (under its
    relational formulation) without known inconsistency with classical logic,
    though definite description conflicts with classical logic *)
 
@@ -55,7 +55,7 @@ inline procedural "cic:/Coq/Logic/ChoiceFacts/funct_choice_imp_description.con"
 
 inline procedural "cic:/Coq/Logic/ChoiceFacts/FunChoice_Equiv_RelChoice_and_ParamDefinDescr.con" as theorem.
 
-(* We show that the guarded relational formulation of the axiom of Choice
+(*#* We show that the guarded relational formulation of the axiom of Choice
    comes from the non guarded formulation in presence either of the
    independance of premises or proof-irrelevance *)