X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fdelayed_updating%2Fetc%2Fcore_reduction%2Fblack_rightarrow_df_3.etc;fp=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fdelayed_updating%2Fetc%2Fcore_reduction%2Fblack_rightarrow_df_3.etc;h=1750f335b99ed4001263b7dbdac1efa25673fba1;hb=df1bcd1387439133c0c33f597a5f8b2331c07772;hp=0000000000000000000000000000000000000000;hpb=119da3f9ce130f7c4e8b23fcc491d221472ad657;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/delayed_updating/etc/core_reduction/black_rightarrow_df_3.etc b/matita/matita/contribs/lambdadelta/delayed_updating/etc/core_reduction/black_rightarrow_df_3.etc
new file mode 100644
index 000000000..1750f335b
--- /dev/null
+++ b/matita/matita/contribs/lambdadelta/delayed_updating/etc/core_reduction/black_rightarrow_df_3.etc
@@ -0,0 +1,19 @@
+(**************************************************************************)
+(*       ___                                                              *)
+(*      ||M||                                                             *)
+(*      ||A||       A project by Andrea Asperti                           *)
+(*      ||T||                                                             *)
+(*      ||I||       Developers:                                           *)
+(*      ||T||         The HELM team.                                      *)
+(*      ||A||         http://helm.cs.unibo.it                             *)
+(*      \   /                                                             *)
+(*       \ /        This file is distributed under the terms of the       *)
+(*        v         GNU General Public License Version 2                  *)
+(*                                                                        *)
+(**************************************************************************)
+
+(* NOTATION FOR DELAYED UPDATING ********************************************)
+
+notation "hvbox( t1 ➡𝐝𝐟[ break term 46 r ] break term 46 t2 )"
+  non associative with precedence 45
+  for @{ 'BlackRightArrowDF $t1 $r $t2 }.