X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fmatita%2Fcontribs%2FLAMBDA-TYPES%2FLevel-1%2FLambdaDelta%2Fiso%2Ffwd.ma;fp=helm%2Fsoftware%2Fmatita%2Fcontribs%2FLAMBDA-TYPES%2FLevel-1%2FLambdaDelta%2Fiso%2Ffwd.ma;h=61a965d156216628a8bed14e72b0d94a4c402f2e;hb=9408f2869ddbbbae68dcb23ebf6c358c61888d0d;hp=9402e8cbfc01e0e79a8ca48c749a24e2a86c6d02;hpb=cca52355d183a00695b9e310b17c8945ae915b64;p=helm.git

diff --git a/helm/software/matita/contribs/LAMBDA-TYPES/Level-1/LambdaDelta/iso/fwd.ma b/helm/software/matita/contribs/LAMBDA-TYPES/Level-1/LambdaDelta/iso/fwd.ma
index 9402e8cbf..61a965d15 100644
--- a/helm/software/matita/contribs/LAMBDA-TYPES/Level-1/LambdaDelta/iso/fwd.ma
+++ b/helm/software/matita/contribs/LAMBDA-TYPES/Level-1/LambdaDelta/iso/fwd.ma
@@ -18,6 +18,8 @@ set "baseuri" "cic:/matita/LAMBDA-TYPES/Level-1/LambdaDelta/iso/fwd".
 
 include "iso/defs.ma".
 
+include "tlist/defs.ma".
+
 theorem iso_flats_lref_bind_false:
  \forall (f: F).(\forall (b: B).(\forall (i: nat).(\forall (v: T).(\forall 
 (t: T).(\forall (vs: TList).((iso (THeads (Flat f) vs (TLRef i)) (THead (Bind