moved predicate relations and conversion rules between set and predicate relations from Predicate.thy to Relation.thy; moved Predicate.thy upwards in theory hierarchy
(* Title: HOL/Quotient_Examples/ROOT.ML
Author: Cezary Kaliszyk and Christian Urban
Testing the quotient package.
*)
use_thys ["DList", "FSet", "Quotient_Int", "Quotient_Message", "Quotient_Cset",
"List_Quotient_Cset", "Lift_Set", "Lift_RBT", "Lift_Fun", "Quotient_Rat"];