author | oheimb |
Thu, 24 Sep 1998 17:17:14 +0200 | |
changeset 5553 | ae42b36a50c2 |
parent 3947 | eb707467f8c5 |
child 8882 | 9df44a4f1bf7 |
permissions | -rw-r--r-- |
(* Title: HOL/gfp.thy ID: $Id$ Author: Lawrence C Paulson, Cambridge University Computer Laboratory Copyright 1994 University of Cambridge Greatest fixed points (requires Lfp too!) *) Gfp = Lfp + global constdefs gfp :: ['a set=>'a set] => 'a set "gfp(f) == Union({u. u <= f(u)})" (*greatest fixed point*) local end