Progress.

[helm.git] / matita / matita / contribs / lambda_delta / basic_2 / computation / csn_vector.ma

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 a8663d8ba7138e98830de9c1048d0ef95229c4bd..92aae546597bc4f10801ceec56163efd70575b8f 100644 (file)
--- 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-.