Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!samsung!munnari.oz.au!metro!research.canon.oz.au!raphael
From: raphael@research.canon.oz.au (Andrew Raphael)
Newsgroups: comp.text
Subject: Re: How to write "N" (naturals) in LaTeX
Message-ID: <1990Sep10.070608.26296@research.canon.oz.au>
Date: 10 Sep 90 07:06:08 GMT
References: <6208@neptune.inf.ethz.ch>
Reply-To: raphael@research.canon.oz.au (Andrew Raphael)
Organization: CISRA Pty Ltd
Lines: 18

In article <6208@neptune.inf.ethz.ch> weibel@brain.inf.ethz.ch (Trudy
Weibel) writes:

>    Currently, I'm writing an article with LaTeX and have to make use
>    of the common symbols "C", "R", "Q", "Z", "N" for complex,  real,
>    rational, integer, and natural respectively.  Now I'm looking for
>    macros (?) (fonts?) to write  them properly (and also write  them
>    easily for me).   In particular,  I would like  something with  a
>    left bar in "C", a double bar in "R", a left bar in "Q", a double
>    slanted bar in "Z", and a double left bar in "N" (like 'I\!\!N').

You might prefer to use the AMSTeX macros, which also provide a blackboard
bold font, which is what you're after. Blackboard bold doesn't look very
good, IMHO.
-- 
Andrew Raphael                               | raphael@research.canon.oz.au 
Canon Information Systems Research Australia | Phone +61-2-805-2915 
PO Box 313 NORTH RYDE NSW 2113               | Fax   +61-2-805-2929