X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;ds=sidebyside;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2A%2Fmultiple%2Fllpx_sn_lpx_sn.ma;h=506827280648ebf47a8918bd5704bc80c0febea0;hb=aeec9312d6f72526a460518a1e889eac71657cdd;hp=870315f66eb832527f0a687cddea618956d70a0f;hpb=d2545ffd201b1aa49887313791386add78fa8603;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2A/multiple/llpx_sn_lpx_sn.ma b/matita/matita/contribs/lambdadelta/basic_2A/multiple/llpx_sn_lpx_sn.ma
index 870315f66..506827280 100644
--- a/matita/matita/contribs/lambdadelta/basic_2A/multiple/llpx_sn_lpx_sn.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2A/multiple/llpx_sn_lpx_sn.ma
@@ -12,6 +12,7 @@
 (*                                                                        *)
 (**************************************************************************)
 
+include "ground/lib/arith_2a.ma".
 include "basic_2A/substitution/lpx_sn_drop.ma".
 include "basic_2A/multiple/llpx_sn.ma".