X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambda_delta%2Fbasic_2%2Funfold%2Fdelift_lift.ma;h=01ee6108ea5a6e248b2912fc21ce29a4186f83e6;hb=53f874fba5b9c39a788085515a4fefe5d29281da;hp=a53033aa0c7e73752848c6437b37436571bc6160;hpb=f7386d0b74f935f07ede4be46d0489a233d68b85;p=helm.git

diff --git a/matita/matita/contribs/lambda_delta/basic_2/unfold/delift_lift.ma b/matita/matita/contribs/lambda_delta/basic_2/unfold/delift_lift.ma
index a53033aa0..01ee6108e 100644
--- a/matita/matita/contribs/lambda_delta/basic_2/unfold/delift_lift.ma
+++ b/matita/matita/contribs/lambda_delta/basic_2/unfold/delift_lift.ma
@@ -32,14 +32,14 @@ qed.
 
 fact sfr_delift_aux: ∀L,T,T1,d,e. d + e ≤ |L| → ≽ [d, e] L → T = T1 →
                      ∃T2. L ⊢ ▼*[d, e] T1 ≡ T2.
-#L #T @(cw_wf_ind … L T) -L -T #L #T #IH * * /2 width=2/
+#L #T @(fw_ind … L T) -L -T #L #T #IH * * /2 width=2/
 [ #i #d #e #Hde #HL #H destruct
   elim (lt_or_ge i d) #Hdi [ /3 width=2/ ]
   elim (lt_or_ge i (d+e)) #Hide [2: /3 width=2/ ]
   lapply (lt_to_le_to_lt … Hide Hde) #Hi
   elim (ldrop_O1_lt … Hi) -Hi #I #K #V1 #HLK
   lapply (sfr_inv_ldrop … HLK … HL ? ?) // #H destruct
-  lapply (ldrop_pair2_fwd_cw … HLK (#i)) #HKL
+  lapply (ldrop_pair2_fwd_fw … HLK (#i)) #HKL
   lapply (ldrop_fwd_ldrop2 … HLK) #HLK0
   lapply (ldrop_fwd_O1_length … HLK0) #H
   lapply (sfr_ldrop_trans_be_up … HLK0 … HL ? ?) -HLK0 -HL