src/HOL/Lfp.thy
author berghofe
Fri, 24 Jul 1998 13:39:47 +0200
changeset 5191 8ceaa19f7717
parent 3947 eb707467f8c5
child 8882 9df44a4f1bf7
permissions -rw-r--r--
Renamed '$' to 'Scons' because of clashes with constants of the same name in theories using datatypes.

(*  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 +

global

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

local

end