Document Classes ⇒ problems with ntheorem

[skitapa]

Apparently the amsmath, amsthm packages together with the ntheorem package can cause troubles according to several sources, i think im experiencing this.
is it even possible to have use \begin{split} when ntheorem is used?

even a silly example like

Code: Select all

\[
\begin{split}
a  & = b   \\
   & = c	\\
   & = d
\end{split}
\]

wont work. what to do

[Stefan Kottwitz]

Hi skitapa,

that example will work with ntheorem and amsmath, but ntheorem cannot be used together with amsthm.

Stefan

[skitapa]

hi
i think you are wrong,
http://www.ctex.org/documents/packages/ ... heorem.pdf page 11:

amsthm.sty conflicts with the definition of theorem layouts in theorem.sty, some
features of amsthm.sty have been incorporated into option [amsthm] which has to
be used instead of \usepackage{amsthm}.

(i did modify according to the link)
anyhow, isnt the amsmath package needed if i use ntheorem?

edit: what i meant was that is the amsthm in \usepackage[amsmath,amsthm]{ntheorem}
redundant?

[Stefan Kottwitz]

What do you mean was wrong? You could use

Code: Select all

\usepackage{amsmath}
\usepackage[amsmath,amsthm]{ntheorem}

but when using ntheorem don't write

Code: Select all

\usepackage{amsthm}

Stefan