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=67312a9acfe1db41b6ee89776ad9517ef6fb1880;hpb=4a5254d45ba455e195b7ae2afca2212446e65ca3;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 67312a9ac..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.