X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fsubstitution%2Fgr2.ma;h=4cee5b1040244aacfb6df2e6182c6189b0702265;hb=b3c3ea1c87cbd7a87c8c29a276fc16f9ebbfb5bd;hp=562b795301b0533603ca3f20cad3461aee487c7d;hpb=f16bbb93ecb40fa40f736e0b1158e1c7676a640a;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/substitution/gr2.ma b/matita/matita/contribs/lambdadelta/basic_2/substitution/gr2.ma
index 562b79530..4cee5b104 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/substitution/gr2.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/substitution/gr2.ma
@@ -12,6 +12,7 @@
 (*                                                                        *)
 (**************************************************************************)
 
+include "basic_2/notation/relations/rat_3.ma".
 include "basic_2/grammar/term_vector.ma".
 
 (* GENERIC RELOCATION WITH PAIRS ********************************************)