X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Freduction%2Fcpx_lift.ma;h=f6df750d14c5b5c16cf864b6686b8a928077a07b;hb=86a84e4116a8d388cb540bae6c60700f84a8f9f8;hp=f0337ff95fa4a181ca776b9237fbab7713f81236;hpb=472cb969d9a01a6d24eabc39ba20d1dc6adf1b04;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/reduction/cpx_lift.ma b/matita/matita/contribs/lambdadelta/basic_2/reduction/cpx_lift.ma
index f0337ff95..f6df750d1 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/reduction/cpx_lift.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/reduction/cpx_lift.ma
@@ -32,7 +32,7 @@ fact sta_cpx_aux: ∀h,g,G,L,T1,T2,l2,l1. ⦃G, L⦄ ⊢ T1 •*[h, l2] T2 → l
 | #G #L #K #V1 #V2 #i #_ #_ #_ #H destruct
 | #G #L #K #V1 #V2 #W2 #i #l2 #HLK #HV12 #HVW2 #_ #H0 #H
   lapply (discr_plus_xy_y … H0) -H0 #H0 destruct
-  elim (da_inv_lref … H) -H * #K0 #V0 [| #l1 ] #HLK0
+  elim (da_inv_lref … H) -H * #K0 #V0 [| #l0 ] #HLK0
   lapply (drop_mono … HLK0 … HLK) -HLK0 #H destruct
   /4 width=7 by cpx_delta, cpr_cpx, lstas_cpr/
 | /4 width=2 by cpx_bind, da_inv_bind/