Does LaTeX have some incrementation system to use with description lists?

Question

Sometimes I'm writing exercises on LaTeX. Suppose I do the following list:

• Exercise 1.
• Exercise 2.
• Exercise 3.

But then I find that the first exercise is not relevant anymore and want to erase it. With what I know about LaTeX until now, I'd have to rewrite 1 in the place of 2 and 2 in the place of 3. Does LaTeX has some kind of increment/variable system to help me with this?

I know about the existence of enumerate. But I'm using description which does not automatically numerates the items. Is it possible to write something inside the [First] that allows me to have automatic numeration just as enumerate?

Answer 1

There's no difficulty to define an enumeration to look like your example:

\documentclass{article}
\usepackage{enumitem}
\begin{document}
\begin{enumerate}[label={\textbullet\ Exercise\ \arabic*.}]

\item An item
\item Another one
\item And another one
\end{enumerate}
\end{document}

If you want all your first level enumerations to look like this, you can set the label globally like this: (the 1 defines the first level).

\setlist[enumerate,1]{label={\textbullet\ Exercise\ \arabic*.}}

Then you don't have to add the code after each \begin{enumerate}.