X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fground%2Frelocation%2Fpr_nat_basic.ma;h=9c93c6e237ba2d9d61e995106780d17337675547;hb=15a2da1b45b2fd34ac67dcb58fc4b94330d18a93;hp=edb5117aa928a021feca82f3d0df7c7036f993d2;hpb=6e4f8f6dc7ab7cdc0d9d852f6786947d3c4513cc;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/ground/relocation/pr_nat_basic.ma b/matita/matita/contribs/lambdadelta/ground/relocation/pr_nat_basic.ma
index edb5117aa..9c93c6e23 100644
--- a/matita/matita/contribs/lambdadelta/ground/relocation/pr_nat_basic.ma
+++ b/matita/matita/contribs/lambdadelta/ground/relocation/pr_nat_basic.ma
@@ -20,7 +20,7 @@ include "ground/relocation/pr_nat_uni.ma".
 (* Constructions with pr_basic **********************************************)
 
 lemma pr_nat_basic_lt (m) (n) (l):
-      l < m → @↑❨l, 𝐛❨m,n❩❩ ≘ l.
+      l < m → ＠§❨l, 𝐛❨m,n❩❩ ≘ l.
 #m @(nat_ind_succ … m) -m
 [ #n #i #H elim (nlt_inv_zero_dx … H)
 | #m #IH #n #l @(nat_ind_succ … l) -l
@@ -33,7 +33,7 @@ lemma pr_nat_basic_lt (m) (n) (l):
 qed.
 
 lemma pr_nat_basic_ge (m) (n) (l):
-      m ≤ l → @↑❨l, 𝐛❨m,n❩❩ ≘ l+n.
+      m ≤ l → ＠§❨l, 𝐛❨m,n❩❩ ≘ l+n.
 #m @(nat_ind_succ … m) -m //
 #m #IH #n #l #H
 elim (nle_inv_succ_sn … H) -H #Hml #H >H -H
@@ -43,9 +43,9 @@ qed.
 (* Inversions with pr_basic *************************************************)
 
 lemma pr_nat_basic_inv_lt (m) (n) (l) (k):
-      l < m → @↑❨l, 𝐛❨m,n❩❩ ≘ k → l = k.
+      l < m → ＠§❨l, 𝐛❨m,n❩❩ ≘ k → l = k.
 /3 width=4 by pr_nat_basic_lt, pr_nat_mono/ qed-.
 
 lemma pr_nat_basic_inv_ge (m) (n) (l) (k):
-      m ≤ l → @↑❨l, 𝐛❨m,n❩❩ ≘ k → l+n = k.
+      m ≤ l → ＠§❨l, 𝐛❨m,n❩❩ ≘ k → l+n = k.
 /3 width=4 by pr_nat_basic_ge, pr_nat_mono/ qed-.