X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fmatita%2Fcontribs%2Fprocedural%2FCoq%2FSets%2FPermut.mma;h=5f0b52dd77d8c56b13f248f3f50cdca9d5bfc7a9;hb=070b11daefc90ecc20ebee73acc550aeac1c627b;hp=1c6d11417fcf4abbc07eb0d00684f444768dee23;hpb=f620bf94af6c347926ed1c2328462efab7018b21;p=helm.git

diff --git a/helm/software/matita/contribs/procedural/Coq/Sets/Permut.mma b/helm/software/matita/contribs/procedural/Coq/Sets/Permut.mma
index 1c6d11417..5f0b52dd7 100644
--- a/helm/software/matita/contribs/procedural/Coq/Sets/Permut.mma
+++ b/helm/software/matita/contribs/procedural/Coq/Sets/Permut.mma
@@ -16,6 +16,8 @@
 
 include "Coq.ma".
 
+include "Init/Prelude.ma".
+
 (*#***********************************************************************)
 
 (*  v      *   The Coq Proof Assistant  /  The Coq Development Team     *)