X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fsyntax%2Fterm_vector.ma;h=df6e6e1cf623cdae6a191612a057fae194856378;hp=cbb43ebb21767703a581738458093ec29ffbd3fe;hb=222044da28742b24584549ba86b1805a87def070;hpb=a77d0bd6a04e94f765d329d47b37d9e04d349b14

diff --git a/matita/matita/contribs/lambdadelta/basic_2/syntax/term_vector.ma b/matita/matita/contribs/lambdadelta/basic_2/syntax/term_vector.ma
index cbb43ebb2..df6e6e1cf 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/syntax/term_vector.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/syntax/term_vector.ma
@@ -29,7 +29,7 @@ interpretation "application to vector (term)"
 
 (* Basic properties *********************************************************)
 
-lemma applv_nil: ∀T. Ⓐ◊.T = T.
+lemma applv_nil: ∀T. ⒶⒺ.T = T.
 // qed.
 
 lemma applv_cons: ∀V,Vs,T. ⒶV⨮Vs.T = ⓐV.ⒶVs.T.