X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fground%2Frelocation%2Fpr_after_ist.ma;h=3973bad47340856096ea50605f08e27a942727c5;hb=15a2da1b45b2fd34ac67dcb58fc4b94330d18a93;hp=62c9f79bd79bc7808792b2f820608cd61b1c2fb9;hpb=77479649510792efe4d9cbff508e118360862594;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/ground/relocation/pr_after_ist.ma b/matita/matita/contribs/lambdadelta/ground/relocation/pr_after_ist.ma
index 62c9f79bd..3973bad47 100644
--- a/matita/matita/contribs/lambdadelta/ground/relocation/pr_after_ist.ma
+++ b/matita/matita/contribs/lambdadelta/ground/relocation/pr_after_ist.ma
@@ -54,8 +54,8 @@ lemma pr_after_des_ist_pat:
 qed-.
 
 lemma pr_after_des_ist_nat:
-      ∀f1,l1,l2. @↑❨l1, f1❩ ≘ l2 → ∀f2. 𝐓❨f2❩ → ∀f. f2 ⊚ f1 ≘ f →
-      ∃∃l. @↑❨l2, f2❩ ≘ l & @↑❨l1, f❩ ≘ l.
+      ∀f1,l1,l2. ＠§❨l1, f1❩ ≘ l2 → ∀f2. 𝐓❨f2❩ → ∀f. f2 ⊚ f1 ≘ f →
+      ∃∃l. ＠§❨l2, f2❩ ≘ l & ＠§❨l1, f❩ ≘ l.
 #f1 #l1 #l2 #H1 #f2 #H2 #f #Hf
 elim (pr_after_des_ist_pat … H1 … H2 … Hf) -f1 -H2
 /2 width=3 by ex2_intro/