a module was missing .........

[helm.git] / helm / software / lambda-delta / src / common / level.mli

diff --git a/helm/software/lambda-delta/src/common/level.mli b/helm/software/lambda-delta/src/common/level.mli
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+++ b/helm/software/lambda-delta/src/common/level.mli
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+(*
+    ||M||  This file is part of HELM, an Hypertextual, Electronic        
+    ||A||  Library of Mathematics, developed at the Computer Science     
+    ||T||  Department, University of Bologna, Italy.                     
+    ||I||                                                                
+    ||T||  HELM is free software; you can redistribute it and/or         
+    ||A||  modify it under the terms of the GNU General Public License   
+    \   /  version 2 or (at your option) any later version.              
+     \ /   This software is distributed as is, NO WARRANTY.              
+      V_______________________________________________________________ *)
+
+type level
+
+val infinite: level
+
+val finite: int -> level
+
+val is_zero: level -> bool
+
+val is_infinite: level -> bool
+
+val succ: level -> level
+
+val pred: level -> level
+
+val to_string: level -> string