matita/contribs/LAMBDA-TYPES/LambdaDelta-1/llt/defs.ma

   1 (**************************************************************************)
   2 (*       ___                                                              *)
   3 (*      ||M||                                                             *)
   4 (*      ||A||       A project by Andrea Asperti                           *)
   5 (*      ||T||                                                             *)
   6 (*      ||I||       Developers:                                           *)
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  10 (*       \ /        This file is distributed under the terms of the       *)
  11 (*        v         GNU General Public License Version 2                  *)
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  13 (**************************************************************************)
  14
  15 (* This file was automatically generated: do not edit *********************)
  16
  17 include "LambdaDelta-1/A/defs.ma".
  18
  19 definition lweight:
  20  A \to nat
  21 \def
  22  let rec lweight (a: A) on a: nat \def (match a with [(ASort _ _) \Rightarrow
  23 O | (AHead a1 a2) \Rightarrow (S (plus (lweight a1) (lweight a2)))]) in
  24 lweight.
  25
  26 definition llt:
  27  A \to (A \to Prop)
  28 \def
  29  \lambda (a1: A).(\lambda (a2: A).(lt (lweight a1) (lweight a2))).
  30