Re: symbol R for real numbers

[Alexander Wollmann]

Torsten Mueller wrote:

> Hallo,
>
> how can I include the R for real numbers (and the N for integer numbers):
> I want to write in math: x element of R
>
> I have tried it with usepackage{amssymb} and then \Bbb{R}, but this
> gives error messages when it comes to the table of contents.
>
> Thanks,
> Torsten

\usepackage{bbm} in the preamble,

then you can use \mathbbm{R}, \mathbbm{N}, ....

Greets,
Alex.