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According to http://www.proofwiki.org/wiki/Symbols:Z#The_Set_of_Integers,

\Z should produce the symbol for the set of integers, but I have not been able to find the package that enables this feature.

I have tried dsfont as well as amsmath,amsfonts,amsthm,amssymb but none of them seem to have it.

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marked as duplicate by mafp, yo', Kurt, T. Verron, Martin Schröder Feb 22 '13 at 18:26

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Can you show the code that you tried to use? – soandos Feb 22 '13 at 17:59
up vote 4 down vote accepted

What about using

\usepackage{amsfonts}
\newcommand{\Z}{\mathbb{Z}}

and then using it in equations?

EDIT: forgot, that it needs amsfonts package.

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I actually ended up doing that just now, but I still wonder whether there's a package that predefines them. – merlin2011 Feb 22 '13 at 17:52
2  
@merlin2011 If there is such, it is definitely not a good one. For me, \Z refers to \mathcal{Z} as I don't work with integers, but I do work with a "zero machine" called this way. Predefining shortcuts like this if you don't use them is a bad idea. Define only such symbols you really use. – yo' Feb 22 '13 at 18:06
1  
Either amsfonts or amssymb; the latter loads the former, and is usually recommended. – egreg Feb 22 '13 at 18:19

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