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src/HOL/Real/RealAbs.thy
author paulson
Thu, 19 Aug 1999 15:11:12 +0200
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documented svc_tac
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(*  Title       : RealAbs.thy
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    ID          : $Id$
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    Author      : Jacques D. Fleuriot
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    Copyright   : 1998  University of Cambridge
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    Description : Absolute value function for the reals
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*)
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RealAbs = Real +













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constdefs













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   rabs   :: real => real








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   "rabs r      == if 0r<=r then r else -r" 








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end














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