partial commit in static_2

[helm.git] / matita / matita / contribs / lambdadelta / static_2 / syntax / lenv_length.ma

diff --git a/matita/matita/contribs/lambdadelta/static_2/syntax/lenv_length.ma b/matita/matita/contribs/lambdadelta/static_2/syntax/lenv_length.ma
index 768105e54ed2de654d7c085d8dbeaacf4c19f4f3..5f4b5dcb71cf718e4d4469c4912ce97ee2e00451 100644 (file)
--- a/matita/matita/contribs/lambdadelta/static_2/syntax/lenv_length.ma
+++ b/matita/matita/contribs/lambdadelta/static_2/syntax/lenv_length.ma
@@ -47,7 +47,7 @@ lemma length_inv_succ_dx: ∀n,L. |L| = ↑n →
                           ∃∃I,K. |K| = n & L = K. ⓘ[I].
 #n *
 [ >length_atom #H destruct
-| #L #I >length_bind /3 width=4 by ex2_2_intro, injective_S/
+| #L #I >length_bind /3 width=4 by ex2_2_intro, eq_inv_nsucc_bi/
 ]
 qed-.