# User talk:Improbable keeler

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## some copy-editing details

Hello.

You'll notice in this edit that it's possible to use actual en-dashes (and em-dashes) rather than double hyphens. (In text mode in LaTeX, double hyphens appear in the final product as en-dashes, but that doesn't work in html.)

Also, in standard TeX usage, one uses \cup in expressions like these:

$A\cup B, \qquad A_1\cup\cdots\cup A_n \,$

and \bigcup in expressions like this:

$\bigcup_{x\in A}g(x). \,$

I edited the article accordingly. Michael Hardy (talk) 01:04, 15 October 2013 (UTC)

OK. Thanks.Improbable keeler (talk) 10:41, 15 October 2013 (UTC)

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