X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fsubstitution%2Fdrop.ma;h=32b00b4bc5bf1bf1f72d99b802d3d928e1e0598c;hb=7e06d9d148ae04a21943377debd933a742d0c2fa;hp=12f9a45c93b062ae0f93616e127beae8bf33eeeb;hpb=3167db4903eea2eddc60a91cfd922be3672ce077;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/substitution/drop.ma b/matita/matita/contribs/lambdadelta/basic_2/substitution/drop.ma
index 12f9a45c9..32b00b4bc 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/substitution/drop.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/substitution/drop.ma
@@ -321,7 +321,7 @@ lemma l_deliftable_sn_llstar: ∀R. l_deliftable_sn R →
 ]
 qed-.
 
-(* Basic forvard lemmas *****************************************************)
+(* Basic forward lemmas *****************************************************)
 
 (* Basic_1: was: drop_S *)
 lemma drop_fwd_drop2: ∀L1,I2,K2,V2,s,e. ⇩[s, O, e] L1 ≡ K2. ⓑ{I2} V2 →