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src/HOL/RelPow.thy
author nipkow
Mon, 04 Nov 1996 17:23:37 +0100
changeset 2159 e650a3f6f600
parent 1824 44254696843a
child 2740 2c549ae2563b
permissions -rw-r--r--
Used nat_trans_tac. New Eta. various smaller changes.
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c443b2adaf52 Added a few thms and the new theory RelPow.
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(*  Title:      HOL/RelPow.thy
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    ID:         $Id$
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    Author:     Tobias Nipkow
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    Copyright   1996  TU Muenchen
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R^n = R O ... O R, the n-fold composition of R













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*)













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RelPow = Nat +













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consts













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  "^" :: "('a * 'a) set => nat => ('a * 'a) set" (infixr 100)













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defs








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  rel_pow_def "R^n == nat_rec id (%m S. R O S) n"








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end















isabelle