update in delayed_updating

[helm.git] / matita / matita / contribs / lambdadelta / delayed_updating / substitution / lift_path_after.ma

diff --git a/matita/matita/contribs/lambdadelta/delayed_updating/substitution/lift_path_after.ma b/matita/matita/contribs/lambdadelta/delayed_updating/substitution/lift_path_after.ma
index 38bded30e911fd4b95576fe8ce9fa00a308d3aff..ec54cdedf483d044d551f39e17010ff00007a0d7 100644 (file)
--- a/matita/matita/contribs/lambdadelta/delayed_updating/substitution/lift_path_after.ma
+++ b/matita/matita/contribs/lambdadelta/delayed_updating/substitution/lift_path_after.ma
@@ -20,7 +20,7 @@ include "delayed_updating/substitution/prelift_label_after.ma".
 (* Constructions with tr_after **********************************************)
 
 lemma lift_path_after (g) (f) (p):
-      ↑[g]↑[f]p = ↑[g∘f]p.
+      🠡[g]🠡[f]p = 🠡[g∘f]p.
 #g #f #p elim p -p //
 #l #p #IH
 <lift_path_rcons <lift_path_rcons  <IH -IH //