X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;ds=inline;f=matita%2Fmatita%2Fcontribs%2Flambda_delta%2Fbasic_2%2Funfold%2Fdelift_delift.ma;fp=matita%2Fmatita%2Fcontribs%2Flambda_delta%2Fbasic_2%2Funfold%2Fdelift_delift.ma;h=30fa2719330d2bf16d471a2f7ea3195d61464f0f;hb=708aa01d44c67343f0dac0353b52c7c2457069b3;hp=753e88796c8ed9f6e54bc5cb1df5a24ad8c3103b;hpb=b6ba48fc7877871aaaf9f8af415f60420d382f18;p=helm.git

diff --git a/matita/matita/contribs/lambda_delta/basic_2/unfold/delift_delift.ma b/matita/matita/contribs/lambda_delta/basic_2/unfold/delift_delift.ma
index 753e88796..30fa27193 100644
--- a/matita/matita/contribs/lambda_delta/basic_2/unfold/delift_delift.ma
+++ b/matita/matita/contribs/lambda_delta/basic_2/unfold/delift_delift.ma
@@ -12,6 +12,7 @@
 (*                                                                        *)
 (**************************************************************************)
 
+include "basic_2/substitution/lift_lift.ma".
 include "basic_2/unfold/tpss_tpss.ma".
 include "basic_2/unfold/delift.ma".