update in delayed_updating

[helm.git] / matita / matita / contribs / lambdadelta / delayed_updating / syntax / prototerm_proper_constructors.ma

diff --git a/matita/matita/contribs/lambdadelta/delayed_updating/syntax/prototerm_proper_constructors.ma b/matita/matita/contribs/lambdadelta/delayed_updating/syntax/prototerm_proper_constructors.ma
index c5a27617ab02de792f623bf197962e0a60df4a11..f7f921bcfb5ee6152efad51bfe57eefbff2ed0b0 100644 (file)
--- a/matita/matita/contribs/lambdadelta/delayed_updating/syntax/prototerm_proper_constructors.ma
+++ b/matita/matita/contribs/lambdadelta/delayed_updating/syntax/prototerm_proper_constructors.ma
@@ -23,8 +23,3 @@ lemma ppc_iref (t) (k):
       (𝛕k.t) ϵ 𝐏.
 #t #k #p * #q #Hq #H0 destruct //
 qed.
-
-lemma ppc_iref2 (t) (k) (d):
-      (𝛕❨k,d❩.t) ϵ 𝐏.
-#t #k #d #p * #q #Hq #H0 destruct //
-qed.