X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fground%2Frelocation%2Fpr_after_isi.ma;fp=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fground%2Frelocation%2Fpr_after_isi.ma;h=f5457f3c335aa58659f6427672392916102b986d;hb=873fb39bdd21aa14877bf5d50db26e3a050c6d43;hp=494659038632fdde6014c105ce8c478ff8736818;hpb=503500ff9a6d9cca363a42b5fe7f3f5de69239f9;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/ground/relocation/pr_after_isi.ma b/matita/matita/contribs/lambdadelta/ground/relocation/pr_after_isi.ma
index 494659038..f5457f3c3 100644
--- a/matita/matita/contribs/lambdadelta/ground/relocation/pr_after_isi.ma
+++ b/matita/matita/contribs/lambdadelta/ground/relocation/pr_after_isi.ma
@@ -41,12 +41,12 @@ qed.
 
 (*** after_isid_inv_sn *)
 lemma pr_after_isi_inv_sn:
-      ∀f1,f2,f. f1 ⊚ f2 ≘ f → 𝐈❨f1❩ → f2 ≡ f.
+      ∀f1,f2,f. f1 ⊚ f2 ≘ f → 𝐈❨f1❩ → f2 ≐ f.
 /3 width=6 by pr_after_isi_sn, pr_after_mono/ qed-.
 
 (*** after_isid_inv_dx *)
 lemma pr_after_isi_inv_dx:
-      ∀f1,f2,f. f1 ⊚ f2 ≘ f → 𝐈❨f2❩ → f1 ≡ f.
+      ∀f1,f2,f. f1 ⊚ f2 ≘ f → 𝐈❨f2❩ → f1 ≐ f.
 /3 width=6 by pr_after_isi_dx, pr_after_mono/ qed-.
 
 (*** after_fwd_isid1 *)