update in delayed_updating

[helm.git] / matita / matita / contribs / lambdadelta / delayed_updating / reduction / ifr_lift.ma

diff --git a/matita/matita/contribs/lambdadelta/delayed_updating/reduction/ifr_lift.ma b/matita/matita/contribs/lambdadelta/delayed_updating/reduction/ifr_lift.ma
index 6eb354905fe8acd473a52b930d08ba7e72ec7522..0bf09b4aa60bd7a066f441d82412c0e6f3aa260a 100644 (file)
--- a/matita/matita/contribs/lambdadelta/delayed_updating/reduction/ifr_lift.ma
+++ b/matita/matita/contribs/lambdadelta/delayed_updating/reduction/ifr_lift.ma
@@ -33,8 +33,7 @@ theorem ifr_lift_bi (f) (p) (q) (t1) (t2):
 @(ex_intro … ((↑[p●𝗔◗𝗟◗q]f)＠⧣❨n❩)) @and3_intro
 [ -Ht1 -Ht2
   <lift_rmap_L_dx >lift_path_L_sn
-  >list_append_rcons_sn in H1n; <reverse_append #H1n
-  <(lift_path_head … H1n) -H1n //
+  <(lift_path_head … H1n) in ⊢ (??%?); -H1n //
 | lapply (in_comp_lift_path_term f … Ht1) -Ht2 -Ht1 -H1n
   <lift_path_d_dx #Ht1 //
 | lapply (lift_term_eq_repl_dx f … Ht2) -Ht2 #Ht2 -Ht1
@@ -50,7 +49,7 @@ theorem ifr_lift_bi (f) (p) (q) (t1) (t2):
   @(stream_eq_trans … (tr_compose_uni_dx …))
   @tr_compose_eq_repl //
   >list_append_rcons_sn in H1n; #H1n >lift_rmap_A_dx
-  /2 width=1 by tls_lift_rmap_append_closed/
+  /2 width=1 by tls_lift_rmap_closed/
 (* Note: crux of the proof ends *)
 ]
 qed.