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From: Keith Thompson <kst-u@mib.org>
Newsgroups: comp.lang.c
Subject: Re: And they say C is obscure
Date: Sun, 14 May 2017 14:10:01 -0700
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Malcolm McLean <malcolm.arthur.mclean@gmail.com> writes:
[...]
> You may be able to train yourself to visualise 4D noughts and
> crosses. If so it's an interesting trick, but it's interesting
> because normally we can't visualise or than three dimensions.
> The exceptions prove (test) the rule.

That's not what "the exception proves the rule" means.

https://en.wikipedia.org/wiki/Exception_that_proves_the_rule

-- 
Keith Thompson (The_Other_Keith) kst-u@mib.org  <http://www.ghoti.net/~kst>
Working, but not speaking, for JetHead Development, Inc.
"We must do something.  This is something.  Therefore, we must do this."
    -- Antony Jay and Jonathan Lynn, "Yes Minister"