Time for action – referring cleverly

We shall rewrite our first example using cleveref. To verify that the package acts cleverly, we consciously omit prefixes in key names to \label and \cref.

1. Modify our first example in this way:

   \documentclass{book}
   \usepackage{cleveref}
   \crefname{enumi}{position}{positions}
   \begin{document}
   \chapter{Statistics}\label{stats}
   \section{Most used packages on arXiv.org}\label{packages}
   The Top Five packages, used on arXiv.org\footnote{according
   to the arXMLiv project\label{project}}:
   \begin{enumerate}
     \item graphicx
     \item amssymb \label{amssymb}
     \item amsmath \label{amsmath}
     \item epsfig
     \item amsfonts
   \end{enumerate}
   \begin{table}[tp]
     \centering
     (Identify obsolete packages on CTAN)
     \caption{Obsolete packages}\label{obsolete}
   \end{table}
   \chapter{Mathematics}
   \emph{amsmath}, on \cref{amsmath} of the top list in
   \cref{packages} of \cref{stats}, is indispensable to high-quality
   Mathematical typesetting in \LaTeX. \emph{amssymb}, on
   \cref{amssymb...