src/HOL/Lfp.thy
author berghofe
Fri, 11 Jul 2003 14:55:17 +0200
changeset 14102 8af7334af4b3
parent 11609 3f3d1add4d94
child 14169 0590de71a016
permissions -rw-r--r--
- Installed specific code generator for equality enforcing that arguments do not have function types, which would result in an error message during compilation. - Added test case generators for basic types.

(*  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