X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;ds=inline;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fground%2Frelocation%2Fpr_sor_isi.ma;h=98eaf1ed11ab870aada67397a51d37b3c4be27b9;hb=d06053844638d88936d711b66fddbcca2a9add1c;hp=bc307df7e0994735dbe7b5f4bc04fd454e3ce226;hpb=8ec019202bff90959cf1a7158b309e7f83fa222e;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/ground/relocation/pr_sor_isi.ma b/matita/matita/contribs/lambdadelta/ground/relocation/pr_sor_isi.ma
index bc307df7e..98eaf1ed1 100644
--- a/matita/matita/contribs/lambdadelta/ground/relocation/pr_sor_isi.ma
+++ b/matita/matita/contribs/lambdadelta/ground/relocation/pr_sor_isi.ma
@@ -66,13 +66,13 @@ qed-.
 
 (*** sor_isid_inv_sn *)
 lemma pr_sor_inv_isi_sn:
-      ∀f1,f2,f. f1 ⋓ f2 ≘ f → 𝐈❨f1❩ → f2 ≡ f.
+      ∀f1,f2,f. f1 ⋓ f2 ≘ f → 𝐈❨f1❩ → f2 ≐ f.
 /3 width=4 by pr_sor_isi_sn, pr_sor_mono/
 qed-.
 
 (*** sor_isid_inv_dx *)
 lemma pr_sor_inv_isi_dx:
-      ∀f1,f2,f. f1 ⋓ f2 ≘ f → 𝐈❨f2❩ → f1 ≡ f.
+      ∀f1,f2,f. f1 ⋓ f2 ≘ f → 𝐈❨f2❩ → f1 ≐ f.
 /3 width=4 by pr_sor_isi_dx, pr_sor_mono/
 qed-.