src/HOL/Lfp.thy
author oheimb
Mon, 15 Oct 2001 17:02:57 +0200
changeset 11772 cf618fe8facd
parent 11609 3f3d1add4d94
child 14169 0590de71a016
permissions -rw-r--r--
renamed reset_locs to del_locs

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

The Knaster-Tarski Theorem
*)

Lfp = Product_Type +

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

end