Article View: comp.specification
Article #303Re: A Mistake in "The Z Notation"?
From: Jim Grundy
Date: Thu, 20 Dec 1990 12:49
Date: Thu, 20 Dec 1990 12:49
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Forget the bit where I say
I think I would rephrase the whole thing like this though:
\begin{zed}
\all Astate; Cstate; x? : X @
\pre Aop \land Abs \implies
(\exists Astate'; Cstate'; y! : Y @ Aop \land Cop \land Abs')
\end{zed}
the rest stands though.
Jim
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Path: arc1-ca.pugleaf.net!utzoo!mnetor!tmsoft!torsqnt!news-server.csri.toronto.edu!clyde.concordia.ca!thunder.mcrcim.mcgill.edu!snorkelwacker.mit.edu!apple!usc!wuarchive!uunet!mcsun!ukc!warwick!cam-cl!news From: jg@cl.cam.ac.uk (Jim Grundy) Newsgroups: comp.specification Subject: Re: A Mistake in "The Z Notation"? Keywords: Z Message-ID: <1990Dec20.124927.713@cl.cam.ac.uk> Date: 20 Dec 90 12:49:27 GMT References: <1990Dec20.121939.2539@cl.cam.ac.uk> Sender: news@cl.cam.ac.uk (The news facility) Reply-To: jg@cl.cam.ac.uk Organization: Cambridge Hardware Verification Group Lines: 13