src/HOL/Lfp.thy
author wenzelm
Thu, 16 Oct 1997 15:33:06 +0200
changeset 3906 5ae0e1324c56
parent 1558 9c6ebfab4e05
child 3947 eb707467f8c5
permissions -rw-r--r--
global;

(*  Title:      HOL/Lfp.thy
    ID:         $Id$
    Author:     Lawrence C Paulson, Cambridge University Computer Laboratory
    Copyright   1992  University of Cambridge

The Knaster-Tarski Theorem
*)

Lfp = mono + Prod +

constdefs
  lfp :: ['a set=>'a set] => 'a set
  "lfp(f) == Inter({u. f(u) <= u})"    (*least fixed point*)

end