X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fsubstitution%2Fldrop_ldrop.ma;h=ccbf607eafced3df6d61c56517d28cfa33142c90;hb=08cb57944c0df08611d4f35d286e46c0d13e4813;hp=07d9c53e41d586f76216b82740190443e3848790;hpb=9245402674a791dfdb943902f8288d742088c854;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/substitution/ldrop_ldrop.ma b/matita/matita/contribs/lambdadelta/basic_2/substitution/ldrop_ldrop.ma
index 07d9c53e4..ccbf607ea 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/substitution/ldrop_ldrop.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/substitution/ldrop_ldrop.ma
@@ -80,7 +80,7 @@ qed.
 
 (* Note: apparently this was missing in basic_1 *)
 theorem ldrop_conf_le: ∀L0,L1,d1,e1. ⇩[d1, e1] L0 ≡ L1 →
-                       ∀L2,e2. ⇩[0, e2] L0 ≡ L2 → e2 ≤ d1 → 
+                       ∀L2,e2. ⇩[0, e2] L0 ≡ L2 → e2 ≤ d1 →
                        ∃∃L. ⇩[0, e2] L1 ≡ L & ⇩[d1 - e2, e1] L2 ≡ L.
 #L0 #L1 #d1 #e1 #H elim H -L0 -L1 -d1 -e1
 [ #d1 #e1 #L2 #e2 #H