update in ground

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

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 9756cd207474dc5e26f343afa99eabe118f000e2..62c9f79bd79bc7808792b2f820608cd61b1c2fb9 100644 (file)
--- a/matita/matita/contribs/lambdadelta/ground/relocation/pr_after_ist.ma
+++ b/matita/matita/contribs/lambdadelta/ground/relocation/pr_after_ist.ma
@@ -47,8 +47,8 @@ qed-.
 
 (*** after_at1_fwd *)
 lemma pr_after_des_ist_pat:
-      ∀f1,i1,i2. @❨i1, f1❩ ≘ i2 → ∀f2. 𝐓❨f2❩ → ∀f. f2 ⊚ f1 ≘ f →
-      ∃∃i. @❨i2, f2❩ ≘ i & @❨i1, f❩ ≘ i.
+      ∀f1,i1,i2. ＠⧣❨i1, f1❩ ≘ i2 → ∀f2. 𝐓❨f2❩ → ∀f. f2 ⊚ f1 ≘ f →
+      ∃∃i. ＠⧣❨i2, f2❩ ≘ i & ＠⧣❨i1, f❩ ≘ i.
 #f1 #i1 #i2 #Hf1 #f2 #Hf2 #f #Hf elim (Hf2 i2) -Hf2
 /3 width=8 by pr_after_des_pat, ex2_intro/
 qed-.