How to change the labels for specific levels for the enumerate environment?

Question

Specifically, I want to change the "i" to be "(i)". I tried redefining the "\roman" command to be "(\roman)" without luck ... any thoughts?

Answer 1

You can change the third level enumerate labels to print (i), (ii) and so on, instead of i., ii. by saying in your preamble

\renewcommand{\labelenumiii}{(\theenumiii)}

If more customizations are needed, then it's probably better to have a look at the enumitem package.

The first level uses the counter enumi, the second level enumii, the third level enumiii and, not surprisingly, the fourth level uses enumiv.

Each counter has a "numeric representation", given by \theenumi, \theenumii, \theenumiii and \theenumiv, but also a "label command".

However the enumitem package has many bells and whistles for customizing the appearance. Don't load both enumerate and enumitem, preferring the second and more powerful package.

Answer 2

Here's how to change the third level of every enumerate environment with the help of the the enumitem package:

\documentclass{article}

\usepackage{enumitem}
\setlist[enumerate,3]{label=(\roman*)}

\begin{document}

\begin{enumerate}
\item{First}
  \begin{enumerate}
  \item{First-first}
    \begin{enumerate}
    \item{First-first-first}
    \end{enumerate}
  \end{enumerate}
\end{enumerate}

\end{document}

Answer 3

Do not use enumitem and enumerate - they do roughly the same thing (enumitem does it better).

Try this (with enumitem):

\documentclass{article}

\usepackage{enumitem}

\begin{document}
\begin{enumerate}[label=(\roman*)]
\item Something
\item Something else
\end{enumerate}
\end{document}

Consult the enumitem documentation for more options.