X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambda_delta%2Fbasic_2%2Fsubstitution%2Fldrop.ma;fp=matita%2Fmatita%2Fcontribs%2Flambda_delta%2Fbasic_2%2Fsubstitution%2Fldrop.ma;h=9511648aab81cad4032fb903dc4ef76ebd340216;hb=53f874fba5b9c39a788085515a4fefe5d29281da;hp=c93d3cd188e0bcbfd18c5a27c8594dbc2ed53cf6;hpb=f7386d0b74f935f07ede4be46d0489a233d68b85;p=helm.git

diff --git a/matita/matita/contribs/lambda_delta/basic_2/substitution/ldrop.ma b/matita/matita/contribs/lambda_delta/basic_2/substitution/ldrop.ma
index c93d3cd18..9511648aa 100644
--- a/matita/matita/contribs/lambda_delta/basic_2/substitution/ldrop.ma
+++ b/matita/matita/contribs/lambda_delta/basic_2/substitution/ldrop.ma
@@ -266,7 +266,7 @@ lemma ldrop_fwd_lw: ∀L1,L2,d,e. ⇩[d, e] L1 ≡ L2 → #{L2} ≤ #{L1}.
 ]
 qed-. 
 
-lemma ldrop_pair2_fwd_cw: ∀I,L,K,V,d,e. ⇩[d, e] L ≡ K. ⓑ{I} V →
+lemma ldrop_pair2_fwd_fw: ∀I,L,K,V,d,e. ⇩[d, e] L ≡ K. ⓑ{I} V →
                           ∀T. #{K, V} < #{L, T}.
 #I #L #K #V #d #e #H #T
 lapply (ldrop_fwd_lw … H) -H #H