Text Formatting ⇒ Grouped List Items

[SAKDOSS]

Hello everybody,

I have the following code.

Code: Select all

\begin{enumerate}[(i)]
\item 1st case
\item 2nd case
\item 3rd case
\end{numerate}

Now I want to regroup the two first cases in one item, i.e. the first line would be for example "(i),(ii) cases 1 and 2" or something similar.

Is it possible? I found a lot documentation on how to customize the items but not on this particular question.

Thanks in advance.

[Stefan Kottwitz]

You can nest enumerate environments, i.e. start an inner enumerate environment after \item.

Stefan

[SAKDOSS]

I could do that but the two cases would still be in different items wouldn't they ?

In fact I have a theorem which regroup three cases, namely: (i), (ii), (iii) that I present normally. But for the demonstration of this theorem i would like to prove first (i) and (ii) together and then in a second time prove (iii).

That's why I am interesting in presenting (i) and (ii) in only one item without spliting them with subitems.

[alainremillard]

You could use the optional argument of \item to override the label and then set to counter to the right amount, like this :

Code: Select all

\documentclass{article}
\usepackage[shortlabels]{enumitem}

\begin{document}
\begin{enumerate}[(i)]
\item[(i) and (ii)] 1st case and 2nd case
\setcounter{enumi}{2}
\item 3rd case
\end{enumerate}
\end{document}

Good day
Alain Rémillard

[SAKDOSS]

Works fine, thanks !