X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Flegacy_1%2Fpreamble.ma;h=5466cb15e7444999f670bc0c34db0fbcd46a519e;hb=756e320c149ae141dffbf5d75202c8e46c4a49b9;hp=96c1bc1fa06ad9a9797eae30279b2df24304e86b;hpb=88a68a9c334646bc17314d5327cd3b790202acd6;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/legacy_1/preamble.ma b/matita/matita/contribs/lambdadelta/legacy_1/preamble.ma
index 96c1bc1fa..5466cb15e 100644
--- a/matita/matita/contribs/lambdadelta/legacy_1/preamble.ma
+++ b/matita/matita/contribs/lambdadelta/legacy_1/preamble.ma
@@ -12,4 +12,6 @@
 (*                                                                        *)
 (**************************************************************************)
 
+include "basics/pts.ma".
+
 inductive False: Prop \def .