Added HOL-ZF to Isabelle.
(*  Title:      HOL/ZF/MainZF.thy
    ID:         $Id$
    Author:     Steven Obua
    Starting point for using HOLZF.
    See "Partizan Games in Isabelle/HOLZF", available from http://www4.in.tum.de/~obua/partizan
*)
theory MainZF
imports Zet LProd
begin
end