ground_2 released and permanently renamed as ground

[helm.git] / matita / matita / contribs / lambdadelta / basic_2A / substitution / drop_append.ma

diff --git a/matita/matita/contribs/lambdadelta/basic_2A/substitution/drop_append.ma b/matita/matita/contribs/lambdadelta/basic_2A/substitution/drop_append.ma
index 49d734ceaebd0ccc355ef2a7e7c4b7d993dd86e7..16fb627ad937686431ee4a56befd2a8a1c18435d 100644 (file)
--- a/matita/matita/contribs/lambdadelta/basic_2A/substitution/drop_append.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2A/substitution/drop_append.ma
@@ -12,6 +12,7 @@
 (*                                                                        *)
 (**************************************************************************)
 
+include "ground/lib/arith_2a.ma".
 include "basic_2A/grammar/lenv_append.ma".
 include "basic_2A/substitution/drop.ma".