X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fground_2%2Fsteps%2Frtc_shift.ma;h=2907ec46eb81e77078386590efb99530a29d1be0;hp=165e1eeda586863948d44f2f2c2ab32a061ac84d;hb=d8d00d6f6694155be5be486a8239f5953efe28b7;hpb=3f57ed2589601e79478c85d74708d8ebdec2cf20

diff --git a/matita/matita/contribs/lambdadelta/ground_2/steps/rtc_shift.ma b/matita/matita/contribs/lambdadelta/ground_2/steps/rtc_shift.ma
index 165e1eeda..2907ec46e 100644
--- a/matita/matita/contribs/lambdadelta/ground_2/steps/rtc_shift.ma
+++ b/matita/matita/contribs/lambdadelta/ground_2/steps/rtc_shift.ma
@@ -12,6 +12,7 @@
 (*                                                                        *)
 (**************************************************************************)
 
+include "ground_2/xoa/ex_5_4.ma".
 include "ground_2/notation/functions/updownarrowstar_1.ma".
 include "ground_2/steps/rtc_isrt.ma".