(*
    ||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_______________________________________________________________ *)

(* $Id: nCic.ml 9058 2008-10-13 17:42:30Z tassi $ *)

exception UnificationFailure of string Lazy.t;;

module Founif (B : Orderings.Blob) : 
  sig

   val unification:
     (* global varlist for both terms t1 and t2 (UNUSED) *)
     (* Terms.varlist -> *)
     (* locked variables: if equal to FV(t2) we match t1 with t2*)
     Terms.varlist -> 
     B.t Terms.foterm ->
     B.t Terms.foterm ->
        B.t Terms.substitution 


   val alpha_eq:
     B.t Terms.foterm ->
     B.t Terms.foterm ->
     B.t Terms.substitution

  end