matita/matita/contribs/lambdadelta/ground/relocation/fr2_map.ma

   1 (**************************************************************************)
   2 (*       ___                                                              *)
   3 (*      ||M||                                                             *)
   4 (*      ||A||       A project by Andrea Asperti                           *)
   5 (*      ||T||                                                             *)
   6 (*      ||I||       Developers:                                           *)
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   9 (*      \   /                                                             *)
  10 (*       \ /        This file is distributed under the terms of the       *)
  11 (*        v         GNU General Public License Version 2                  *)
  12 (*                                                                        *)
  13 (**************************************************************************)
  14
  15 include "ground/notation/functions/diamond_0.ma".
  16 include "ground/notation/functions/semicolon_3.ma".
  17 include "ground/arith/nat.ma".
  18
  19 (* FINITE RELOCATION MAPS WITH PAIRS ****************************************)
  20
  21 (*** mr2 *)
  22 inductive fr2_map: Type[0] :=
  23 (*** nil2 *)
  24   | fr2_nil : fr2_map
  25 (*** cons2 *)
  26   | fr2_cons: nat → nat → fr2_map → fr2_map.
  27
  28 interpretation
  29   "nil (finite relocation maps with pairs)"
  30   'Diamond = (fr2_nil).
  31
  32 interpretation
  33   "cons (finite relocation maps with pairs)"
  34   'Semicolon d h f = (fr2_cons d h f).