update in delayed_updating

[helm.git] / matita / matita / contribs / lambdadelta / delayed_updating / substitution / lift_path_uni.ma

diff --git a/matita/matita/contribs/lambdadelta/delayed_updating/substitution/lift_path_uni.ma b/matita/matita/contribs/lambdadelta/delayed_updating/substitution/lift_path_uni.ma
index 0e22a3d39917cc97389097f4015fe4b58c85c8ca..841e706d63c0cad6570cb89f0a96abd69c1f69e5 100644 (file)
--- a/matita/matita/contribs/lambdadelta/delayed_updating/substitution/lift_path_uni.ma
+++ b/matita/matita/contribs/lambdadelta/delayed_updating/substitution/lift_path_uni.ma
@@ -12,17 +12,18 @@
 (*                                                                        *)
 (**************************************************************************)
 
-include "delayed_updating/substitution/lift_id.ma".
+include "delayed_updating/substitution/lift_path_id.ma".
 include "ground/relocation/tr_uni_pap.ma".
 include "ground/relocation/tr_uni_tls.ma".
+include "ground/arith/nat_pred_succ.ma".
 
 (* LIFT FOR PATH ************************************************************)
 
 (* Constructions with tr_uni ************************************************)
 
-lemma lift_path_d_sn_uni (p) (m) (n):
-      (𝗱(n+m)◗p) = ↑[𝐮❨m❩](𝗱(n)◗p).
-#p #m #n
+lemma lift_path_d_sn_uni (p) (n) (k):
+      (𝗱(k+n)◗p) = 🠡[𝐮❨n❩](𝗱k◗p).
+#p #n #k
 <lift_path_d_sn <tr_uni_pap >nsucc_pnpred
 <tr_tls_succ_uni //
 qed.