X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambda_delta%2Fbasic_2%2Fcomputation%2Fcsn_vector.ma;h=7c26ef429234e39edae390971089dda75455a69c;hb=f79d97a42a84f94d37ad9589fcce46149ee23d12;hp=92aae546597bc4f10801ceec56163efd70575b8f;hpb=636c25914e83819c2f529edc891a7eb899499a97;p=helm.git

diff --git a/matita/matita/contribs/lambda_delta/basic_2/computation/csn_vector.ma b/matita/matita/contribs/lambda_delta/basic_2/computation/csn_vector.ma
index 92aae5465..7c26ef429 100644
--- a/matita/matita/contribs/lambda_delta/basic_2/computation/csn_vector.ma
+++ b/matita/matita/contribs/lambda_delta/basic_2/computation/csn_vector.ma
@@ -26,5 +26,5 @@ interpretation
 
 (* Basic inversion lemmas ***************************************************)
 
-lemma csnv_inv_cons: ∀L,T,Ts. L ⊢ ⬇* T @ Ts → L ⊢ ⬇* T ∧ L ⊢ ⬇* Ts.
+lemma csnv_inv_cons: ∀L,T,Ts. L ⊢ ⬊* T @ Ts → L ⊢ ⬊* T ∧ L ⊢ ⬊* Ts.
 normalize // qed-.