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From: "Chad R. Meiners" <crmeiners@hotmail.com>
Newsgroups: comp.lang.ada
Subject: Re: Generation of permutations
Date: Tue, 7 May 2002 13:44:49 -0400
Organization: Michigan State University
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<tmoran@acm.org> wrote in message
news:PsLB8.6706$cT1.98522399@newssvr21.news.prodigy.com...
>   So "recursively undecidable" is a fancy way of saying it may get stuck
> in an infinite loop,

It is more significant than that.  I suggest that instead of shruging off
your lack of knowledge in this important topic, you should acquire a book on
the subject and read through some of it.  I suggest "Introduction to the
Theory of Computation" by Michael Sipser.