cleveref and cases packages clash

Question

In the MWE below cleveref produces `section 1' instead of a reference to equation 2. What's the easiest fix? (other than using \eqref or (\ref))

\documentclass{article}


\usepackage{cleveref}
\usepackage{cases}


\begin{document}

\section{Intro}

\begin{numcases}{}
 a=b \\
 c=d. \label{c=d}
\end{numcases}

Cleveref produces a reference to the section: \cref{c=d} 

Regular ref produces a reference to the equation: \ref{c=d}.
\end{document}

score 7 · Accepted Answer · edited May 20 '19 at 12:38

Without the use of cases and with much code copied from Thorsten Donig:

% arara: pdflatex
% arara: pdflatex

\documentclass{article}
\usepackage{empheq} % loading `mathtools` % loading `amsmath`
\usepackage{cleveref} % load this as very last package

\begin{document}    
    \section{Intro} 
    \begin{empheq}[left={=\empheqbiglbrace~}]{align}
    a&=b\\
    c&=d\label{eq:equation} 
    \end{empheq}
    Cleveref produces a reference to the section: \cref{eq:equation} 

    Regular ref produces a reference to the equation: \ref{eq:equation}.
\end{document}

enter image description here

PS: The package cases isn't maintained (referring to uploads on CTAN) since 2002 and the problem with cleveref has been spotted already but not fixed. So maybe you should not use this package for your case.

cleveref and cases packages clash

1 Answers1

Linked