On 6/8/07, Alfonso Acosta <alfonso.acosta@gmail.com> wrote:
> \newcommand{\pp}{+ \hspace{-0.2cm} +}

Why 0.2cm? Wouldn't that depend on the font size?

You are right. It depends on the font size.

using ems as the
hspace size sounds more reasonable.

Yes, we can define \pp in this way, or we can define it as

\newcommand{\pp}{+ \negthinspace +}.

--
Andrés