X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fcontribs%2FLAMBDA-TYPES%2FLevel-1%2FLambdaDelta%2Fdrop1%2Fprops.ma;h=359869780df3fbeb53edf8ef6ea0518d71fdf539;hb=00305d361464ea4c1c071b9be29482198d521eda;hp=2e1f964ed43f15f206caf182cf321e12c9ff32ac;hpb=260615773f01b051db400034a8df7c578fe53718;p=helm.git

diff --git a/matita/contribs/LAMBDA-TYPES/Level-1/LambdaDelta/drop1/props.ma b/matita/contribs/LAMBDA-TYPES/Level-1/LambdaDelta/drop1/props.ma
index 2e1f964ed..359869780 100644
--- a/matita/contribs/LAMBDA-TYPES/Level-1/LambdaDelta/drop1/props.ma
+++ b/matita/contribs/LAMBDA-TYPES/Level-1/LambdaDelta/drop1/props.ma
@@ -20,6 +20,8 @@ include "drop1/defs.ma".
 
 include "drop/props.ma".
 
+include "getl/defs.ma".
+
 theorem drop1_skip_bind:
  \forall (b: B).(\forall (e: C).(\forall (hds: PList).(\forall (c: 
 C).(\forall (u: T).((drop1 hds c e) \to (drop1 (Ss hds) (CHead c (Bind b)