| author | paulson |
| Fri, 17 Jul 1998 10:50:01 +0200 | |
| changeset 5154 | 40fd46f3d3a1 |
| parent 3947 | eb707467f8c5 |
| child 8882 | 9df44a4f1bf7 |
| permissions | -rw-r--r-- |
| 1475 | 1 |
(* Title: HOL/Lfp.thy |
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ID: $Id$ |
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Author: Lawrence C Paulson, Cambridge University Computer Laboratory |
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Copyright 1992 University of Cambridge |
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The Knaster-Tarski Theorem |
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*) |
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Lfp = mono + Prod + |
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global |
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constdefs |
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lfp :: ['a set=>'a set] => 'a set |
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"lfp(f) == Inter({u. f(u) <= u})" (*least fixed point*)
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local |
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end |