| author | wenzelm |
| Tue, 27 May 1997 15:45:07 +0200 | |
| changeset 3362 | 0b268cff9344 |
| parent 1558 | 9c6ebfab4e05 |
| child 3947 | eb707467f8c5 |
| 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 + constdefs gfp :: ['a set=>'a set] => 'a set "gfp(f) == Union({u. u <= f(u)})" (*greatest fixed point*) end