X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2A%2Fgrammar%2Flenv_length.ma;h=4d1d96059bd5da87e946a5ab3e38897c9b2ec23b;hb=68b4f2490c12139c03760b39895619e63b0f38c9;hp=cefc9b04980a3a7b3e952b4f3cc21a24851ca727;hpb=d2545ffd201b1aa49887313791386add78fa8603;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2A/grammar/lenv_length.ma b/matita/matita/contribs/lambdadelta/basic_2A/grammar/lenv_length.ma
index cefc9b049..4d1d96059 100644
--- a/matita/matita/contribs/lambdadelta/basic_2A/grammar/lenv_length.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2A/grammar/lenv_length.ma
@@ -12,6 +12,7 @@
 (*                                                                        *)
 (**************************************************************************)
 
+include "ground/xoa/ex_2_3.ma".
 include "basic_2A/grammar/lenv.ma".
 
 (* LENGTH OF A LOCAL ENVIRONMENT ********************************************)