Re: [AUCTeX] Help requested in first use of Auctex

[Tassilo Horn]

heathmatlock <address@hidden> writes:

> I have a file with the contents:
>
> Proof:
>   If S_{1} and S_{2} are finite sets with |S_{1}| = n and |S_{2}| = m,
> then |S_{0} U S_{2}| <= n + m
>
>
> C-c C-p C-d to obtain a preview of the document fails with the
> following output:

That's no LaTeX document.  Have a look at

  http://www.maths.tcd.ie/~dwilkins/LaTeXPrimer/

for getting started with LaTeX.

Bye,
Tassilo