matita/matita/contribs/lambdadelta/delayed_updating/notation/relations/black_rightarrow_df_3.ma

   1 (**************************************************************************)
   2 (*       ___                                                              *)
   3 (*      ||M||                                                             *)
   4 (*      ||A||       A project by Andrea Asperti                           *)
   5 (*      ||T||                                                             *)
   6 (*      ||I||       Developers:                                           *)
   7 (*      ||T||         The HELM team.                                      *)
   8 (*      ||A||         http://helm.cs.unibo.it                             *)
   9 (*      \   /                                                             *)
  10 (*       \ /        This file is distributed under the terms of the       *)
  11 (*        v         GNU General Public License Version 2                  *)
  12 (*                                                                        *)
  13 (**************************************************************************)
  14
  15 (* NOTATION FOR DELAYED UPDATING ********************************************)
  16
  17 notation "hvbox( t1 ➡𝐝𝐟[ break term 46 r ] break term 46 t2 )"
  18   non associative with precedence 45
  19   for @{ 'BlackRightArrowDF $t1 $r $t2 }.