X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambda_delta%2Fbasic_2%2Funfold%2Fdelift_delift.ma;h=a5c5635655829b5067d78edc8aa86100848e7111;hb=eae50cc815292d335df1c488a00b39ef98fa5870;hp=f6cb1fa3ff6c7a57703dfff8358e89d4877825ce;hpb=fde3b3d2e6cc48f6c9880136b1a0d565e2c78c1f;p=helm.git

diff --git a/matita/matita/contribs/lambda_delta/basic_2/unfold/delift_delift.ma b/matita/matita/contribs/lambda_delta/basic_2/unfold/delift_delift.ma
index f6cb1fa3f..a5c563565 100644
--- a/matita/matita/contribs/lambda_delta/basic_2/unfold/delift_delift.ma
+++ b/matita/matita/contribs/lambda_delta/basic_2/unfold/delift_delift.ma
@@ -20,7 +20,7 @@ include "basic_2/unfold/delift.ma".
 (* Main properties **********************************************************)
 
 theorem delift_mono: ∀L,T,T1,T2,d,e.
-                     L ⊢ T ▼*[d, e] ≡ T1 → L ⊢ T ▼*[d, e] ≡ T2 → T1 = T2.
+                     L ⊢ ▼*[d, e] T ≡ T1 → L ⊢ ▼*[d, e] T ≡ T2 → T1 = T2.
 #L #T #T1 #T2 #d #e * #U1 #H1TU1 #H2TU1 * #U2 #H1TU2 #H2TU2
 elim (tpss_conf_eq … H1TU1 … H1TU2) -T #U #HU1 #HU2
 lapply (tpss_inv_lift1_eq … HU1 … H2TU1) -HU1 #H destruct