X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fground%2Frelocation%2Fpr_coafter_nat_tls.ma;h=0aee27910bc86d1d7626c6c902fd4fe9a9f93b80;hb=15a2da1b45b2fd34ac67dcb58fc4b94330d18a93;hp=421e8a0b40ce2bc8814d7e83493b4d0c9dc091b0;hpb=6e4f8f6dc7ab7cdc0d9d852f6786947d3c4513cc;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/ground/relocation/pr_coafter_nat_tls.ma b/matita/matita/contribs/lambdadelta/ground/relocation/pr_coafter_nat_tls.ma
index 421e8a0b4..0aee27910 100644
--- a/matita/matita/contribs/lambdadelta/ground/relocation/pr_coafter_nat_tls.ma
+++ b/matita/matita/contribs/lambdadelta/ground/relocation/pr_coafter_nat_tls.ma
@@ -22,7 +22,7 @@ include "ground/relocation/pr_coafter.ma".
 
 (*** coafter_tls *)
 lemma pr_coafter_tls_bi_tls (n2) (n1):
-      ∀f1,f2,f. @↑❨n1, f1❩ ≘ n2 →
+      ∀f1,f2,f. ＠§❨n1, f1❩ ≘ n2 →
       f1 ~⊚ f2 ≘ f → ⫰*[n2]f1 ~⊚ ⫰*[n1]f2 ≘ ⫰*[n2]f.
 #n2 @(nat_ind_succ … n2) -n2 [ #n1 | #n2 #IH * [| #n1 ] ] #f1 #f2 #f #Hf1 #Hf
 [ elim (pr_nat_inv_zero_dx … Hf1) -Hf1 [ |*: // ] #g1 #Hg1 #H1 destruct //
@@ -40,6 +40,6 @@ qed.
 
 (*** coafter_tls_O *)
 lemma pr_coafter_tls_sn_tls:
-      ∀n,f1,f2,f. @↑❨𝟎, f1❩ ≘ n →
+      ∀n,f1,f2,f. ＠§❨𝟎, f1❩ ≘ n →
       f1 ~⊚ f2 ≘ f → ⫰*[n]f1 ~⊚ f2 ≘ ⫰*[n]f.
 /2 width=1 by pr_coafter_tls_bi_tls/ qed.