helm/software/matita/contribs/procedural/Coq/Num/Leibniz/NSyntax.mma

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   3 (*      ||M||                                                             *)
   4 (*      ||A||       A project by Andrea Asperti                           *)
   5 (*      ||T||                                                             *)
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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 "Coq.ma".
  18
  19 (*s Syntax for arithmetic *)
  20
  21 include "Num/Params.ma".
  22
  23 (* NOTATION
  24 Infix 6 "<" lt.
  25 *)
  26
  27 (* NOTATION
  28 Infix 6 "<=" le.
  29 *)
  30
  31 (* NOTATION
  32 Infix 6 ">" gt.
  33 *)
  34
  35 (* NOTATION
  36 Infix 6 ">=" ge.
  37 *)
  38
  39 (*i Infix 7 "+" plus. i*)
  40
  41 (* NOTATION
  42 Grammar constr lassoc_constr4 :=
  43   squash_sum
  44   [ lassoc_constr4($c1) "+" lassoc_constr4($c2) ] ->
  45       case [$c2] of
  46         (SQUASH $T2) ->
  47             case [$c1] of
  48               (SQUASH $T1) -> [ (sumbool $T1 $T2) ] (* {T1}+{T2} *)
  49             | $_           -> [ (sumor $c1 $T2) ]   (* c1+{T2} *)
  50             esac
  51       | $_           -> [ (add $c1 $c2) ]           (* c1+c2 *)
  52       esac.
  53 *)
  54
  55 (* NOTATION
  56 Syntax constr
  57   level 1:
  58     equal [ (eqN $t1 $t2) ] -> [ [<hov 0> $t1:E [0 1]  "=" $t2:E ] ]
  59  ;
  60
  61   level 4:
  62     sum [ (add $t1 $t2) ] -> [ [<hov 0> $t1:E [0 1] "+" $t2:L ] ]
  63 .
  64 *)
  65