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From: ecogk@lure.latrobe.edu.au
Newsgroups: comp.text.tex
Subject: Re: Natural numbers set math symbol wanted.
Message-ID: <1991May17.161838.1@lure.latrobe.edu.au>
Date: 17 May 91 06:18:38 GMT
References: <1942@svin02.info.win.tue.nl>
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It should be available in some fancy fonts, like Euler. However, try the
following:

\def\N{\hbox{I\hskip-0.2em I\hskip-0.35em N}}

G\'abor K\H or\"osi