X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Frt_transition%2Fcpr_drops_basic.ma;h=327959cf6c3179a211a2b853be0fce9eebb71dcb;hb=55c768d7e45babb300b5010463ba3196a68f1bbe;hp=988a3d32ee17af1d10d8fa02f642ad4dc31c585a;hpb=25c634037771dff0138e5e8e3d4378183ff49b86;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/rt_transition/cpr_drops_basic.ma b/matita/matita/contribs/lambdadelta/basic_2/rt_transition/cpr_drops_basic.ma
index 988a3d32e..327959cf6 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/rt_transition/cpr_drops_basic.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/rt_transition/cpr_drops_basic.ma
@@ -22,7 +22,7 @@ include "basic_2/rt_transition/cpr.ma".
 
 lemma cpr_subst (h) (G) (L) (U1) (i):
                 ∀K,V. ⇩[i] L ≘ K.ⓓV →
-                ∃∃U2,T2. ❪G,L❫ ⊢ U1 ➡[h] U2 & ⇧[i,1] T2 ≘ U2.
+                ∃∃U2,T2. ❪G,L❫ ⊢ U1 ➡[h,0] U2 & ⇧[i,1] T2 ≘ U2.
 #h #G #L #U1 @(fqup_wf_ind_eq (Ⓣ) … G L U1) -G -L -U1
 #G0 #L0 #U0 #IH #G #L * *
 [ #s #HG #HL #HT #i #K #V #_ destruct -IH
@@ -31,7 +31,7 @@ lemma cpr_subst (h) (G) (L) (U1) (i):
   elim (lt_or_eq_or_gt i j) #Hij
   [ /3 width=4 by lifts_lref_ge_minus, cpr_refl, ex2_2_intro/
   | elim (lifts_total V (𝐔❨↑i❩)) #U2 #HU2
-    elim (lifts_split_trans … HU2 (𝐔❨i❩) (𝐁❨i,1❩)) [2: @(after_basic_rc i 0) ]
+    elim (lifts_split_trans … HU2 (𝐔❨i❩) (𝐛❨i,1❩)) [2: @(after_basic_rc i 0) ]
     /3 width=7 by cpm_delta_drops, ex2_2_intro/
   | /3 width=4 by lifts_lref_lt, cpr_refl, ex2_2_intro/
   ]