Imagine I define a new command as :
\newcommand{\seagal}{$\sigma$-algebra}
and use it as follows :
A \seagal is defined as
This will produce a text where is will have "-algebrais defined as" and not "-algebra is defined as" : a space is missing. When I write
\mathscr{M} is indeed a \seagal.
though, I don't have a space and I shouldn't have one.
How could I produce a newcommand that handles both cases correctly ?
