X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Flib%2Fbasics%2Frelations.ma;h=a82f314f698e9dc23fb479c56848c83b586d2654;hb=a591f77721b3d4fd83afe222aa7cb0a7dbcc994e;hp=a1bae198b707723b66f5ba16db61ac1cac58deab;hpb=24fc5e5485245fe879e17d46176530b688930b3b;p=helm.git

diff --git a/matita/matita/lib/basics/relations.ma b/matita/matita/lib/basics/relations.ma
index a1bae198b..a82f314f6 100644
--- a/matita/matita/lib/basics/relations.ma
+++ b/matita/matita/lib/basics/relations.ma
@@ -11,6 +11,11 @@
 
 include "basics/logic.ma".
 
+(********** preducates *********)
+
+definition predicate: Type[0] → Type[0]
+≝ λA.A→Prop.
+
 (********** relations **********)
 definition relation : Type[0] → Type[0]
 ≝ λA.A→A→Prop.