On 9/22/07, Uwe Stöhr <[EMAIL PROTECTED]> wrote:
> > Thanks, Uwe. You say that I have to define that my new theorem
> > environment ends with a $\Box$. But how can I do that?
>
> I stole this from the ntheorem manual:
>
> \theoremsymbol{\ensuremath{\blacksquare}}
>
> That the symbol doesn't appear in your file has the reason that within
> theorem environments no
> paragraph breaks are allowed when you want to see the symbol. Forced line
> breaks are also not
> allowed, so you have to write everything in ERT.
> See the attached Lyx file for how this is done.
Thanks, Uwe. I understand now why the square was not shown in the pdf output.
Paul