author | wenzelm |
Tue, 22 Nov 2005 19:34:47 +0100 | |
changeset 18227 | d4cfa0fee007 |
parent 17456 | bcf7544875b2 |
child 20140 | 98acc6d0fab6 |
permissions | -rw-r--r-- |
(* Title: CCL/Gfp.thy ID: $Id$ Author: Lawrence C Paulson, Cambridge University Computer Laboratory Copyright 1992 University of Cambridge *) header {* Greatest fixed points *} theory Gfp imports Lfp begin constdefs gfp :: "['a set=>'a set] => 'a set" (*greatest fixed point*) "gfp(f) == Union({u. u <= f(u)})" ML {* use_legacy_bindings (the_context ()) *} end