X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambda_delta%2Fbasic_2%2Fcomputation%2Fcsn_aaa.ma;h=67744a098a152cd8101ea18dfe6e37f566856b47;hb=f79d97a42a84f94d37ad9589fcce46149ee23d12;hp=8b36e75ae57c9a1500d031151c34217dc7c356be;hpb=2ba7ef901a6b72210692792f2396c08bc0cff52c;p=helm.git

diff --git a/matita/matita/contribs/lambda_delta/basic_2/computation/csn_aaa.ma b/matita/matita/contribs/lambda_delta/basic_2/computation/csn_aaa.ma
index 8b36e75ae..67744a098 100644
--- a/matita/matita/contribs/lambda_delta/basic_2/computation/csn_aaa.ma
+++ b/matita/matita/contribs/lambda_delta/basic_2/computation/csn_aaa.ma
@@ -19,7 +19,7 @@ include "basic_2/computation/csn_tstc_vector.ma".
 
 (* Properties concerning atomic arity assignment ****************************)
 
-lemma csn_aaa: ∀L,T,A. L ⊢ T ⁝ A → L ⊢ ⬇* T.
+lemma csn_aaa: ∀L,T,A. L ⊢ T ⁝ A → L ⊢ ⬊* T.
 #L #T #A #H
 @(acp_aaa … csn_acp csn_acr … H)
 qed.