lambdadelta

[helm.git] / matita / matita / contribs / lambdadelta / basic_2 / substitution / gr2.ma

diff --git a/matita/matita/contribs/lambdadelta/basic_2/substitution/gr2.ma b/matita/matita/contribs/lambdadelta/basic_2/substitution/gr2.ma
index 562b795301b0533603ca3f20cad3461aee487c7d..4cee5b1040244aacfb6df2e6182c6189b0702265 100644 (file)
--- 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 ********************************************)