Enumerate align problem inside theorem

Question

I am trying to add a separation between the beginning of a theorem environment and an enumeration. I want this:

Theorem
 (1)
 (2)
 (3)

And not this:

Theorem (1)
 (2)
 (3)

I know a solution is using \leavevmode, but what I want to do is to automatically include this command inside my theorem environment, so I tried this:

\theoremstyle{definition}
\newtheorem*{demo}{Demostración:}
\BeforeBeginEnvironment{demo}{\begin{adjustwidth}{1cm}{1cm}}
\AtBeginEnvironment{demo}{\leavevmode}
\AfterEndEnvironment{demo}{\end{adjustwidth}}

But this is doing nothing. I mean, it doesn't give me an error, it just does nothing (but if I include \leavevmode after the \begin{demo} it works. I think I'm loading all the necessary packages.

Hope you can help me :)

this question should be relevant: theorem environment : interaction with enumerate/itemize — barbara beeton, Jun 09 '18 at 20:41

score 2 · Accepted Answer · answered Jun 09 '18 at 13:21

2

You can do this with a new environment, built around a standard theorem.

\documentclass{amsart}

\newtheorem{theorem}{Theorem}
\newenvironment{ltheorem}{\begin{theorem}\leavevmode}{\end{theorem}}

\begin{document}

\begin{ltheorem}
  \begin{enumerate}
  \item One
  \item Two
  \item Three
  \end{enumerate}
\end{ltheorem}

\end{document}

answered Jun 09 '18 at 13:21

Andrew Swann

95,762

@PabloD. Since Andrew's answer solved your problem, please consider marking it as ‘Accepted’ by clicking on the tickmark below their vote count (see How do you accept an answer?). This assigns reputation points to the author of the answer (and to you!). It's part of this site's idea to identify good questions and answers through upvotes and acceptance of answers. – CarLaTeX Jun 12 '18 at 15:11

Enumerate align problem inside theorem

1 Answers1