update in ground

[helm.git] / matita / matita / contribs / lambdadelta / ground / relocation / pr_nat_uni.ma

diff --git a/matita/matita/contribs/lambdadelta/ground/relocation/pr_nat_uni.ma b/matita/matita/contribs/lambdadelta/ground/relocation/pr_nat_uni.ma
index 8831312c6e9296a1bf5101f3bac112734bcda8c7..8b0f308417321504c0335c544e5cb549dcce96b5 100644 (file)
--- a/matita/matita/contribs/lambdadelta/ground/relocation/pr_nat_uni.ma
+++ b/matita/matita/contribs/lambdadelta/ground/relocation/pr_nat_uni.ma
@@ -21,12 +21,12 @@ include "ground/relocation/pr_nat_nat.ma".
 (* Constructions with pr_uni ************************************************)
 
 lemma pr_nat_uni (n) (l):
-      @↑❪l,𝐮❨n❩❫ ≘ l+n.
+      ＠§❨l,𝐮❨n❩❩ ≘ l+n.
 /2 width=1 by pr_nat_pred_bi/
 qed.
 
 (* Inversions with pr_uni ***************************************************)
 
 lemma pr_nat_inv_uni (n) (l) (k):
-      @↑❪l,𝐮❨n❩❫ ≘ k → k = l+n.
+      ＠§❨l,𝐮❨n❩❩ ≘ k → k = l+n.
 /2 width=4 by pr_nat_mono/ qed-.