lambdadelta

[helm.git] / matita / matita / contribs / lambdadelta / apps_2 / functional / lift.ma

diff --git a/matita/matita/contribs/lambdadelta/apps_2/functional/lift.ma b/matita/matita/contribs/lambdadelta/apps_2/functional/lift.ma
index 92c791912cacfdebf40ae9b94f61564c3b15d2b3..634a7eb4ae68ccf06ff9054ae118649f7c334ed1 100644 (file)
--- a/matita/matita/contribs/lambdadelta/apps_2/functional/lift.ma
+++ b/matita/matita/contribs/lambdadelta/apps_2/functional/lift.ma
@@ -63,6 +63,6 @@ qed-.
 lemma flift_join: ∀e1,e2,T. ⇧[e1, e2] ↑[0, e1] T ≡ ↑[0, e1 + e2] T.
 #e1 #e2 #T
 lapply (flift_lift T 0 (e1+e2)) #H
-elim (lift_split … H e1 e1 ? ? ?) -H // #U #H
+elim (lift_split … H e1 e1) -H // #U #H
 >(flift_inv_lift … H) -H //
 qed.