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Posted by dorayme on 11/26/30 11:44
In article <443845e2$0$3707$cb0e7fc6@news.centralva.net>,
"Jonathan N. Little" <lws4art@centralva.net> wrote:
> dorayme wrote:
> > In article <55yge2pfd8n5$.w18635w13l1c.dlg@40tude.net>,
> > =?iso-8859-1?Q?Dav=E9mon?= <"davιmon"@nospam.com> wrote:
> >
> >> in maths, two negatives make a positive, wheras in language
> >> (English at least) two negatives are just emphatically negative. "I don't
> >> know nothing about it".
> >>
> > This is quite misleading and vague I am afraid. In maths,
> > sometimes two negatives make a negative:
> >
> > (-2) + (-2) = -4
> >
> And sometimes can result in a positive:
> (-2) * (-2) = 4
>
> ;-)
Yes, indeed, this is usually how the word "sometimes" works. But
not always! Some, like an empty class, can have zero instances.
--
dorayme
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