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src/CCL/Gfp.thy
author huffman
Thu, 26 May 2005 02:23:27 +0200
changeset 16081 81a4b4a245b0
parent 1474 3f7d67927fe2
child 17456 bcf7544875b2
permissions -rw-r--r--
cleaned up, added cpair_less and cpair_eq_pair, removed some obsolete stuff
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(*  Title:      HOL/gfp.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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Greatest fixed points













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*)













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Gfp = Lfp +













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consts gfp :: "['a set=>'a set] => 'a set"













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rules













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 (*greatest fixed point*)













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 gfp_def "gfp(f) == Union({u. u <= f(u)})"













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end















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