\documentclass[12pt, reqno]{amsart}

\input{frontmatter/packages.tex}
\input{frontmatter/standardMacros.tex}
\input{frontmatter/extraMacros.tex}
\input{frontmatter/theoremStyle.tex}



\begin{document}
\title[]{Stacks HW5 - Comma Category and adjunction}\maketitle
\begin{enumerate}

\item Let $C$ be a category. $F$ be a functor. Show that the diagonal is representable
  iff every map $X \to F$, with $X \in C$, is representable.

\end{enumerate}
\end{document}

