\documentclass{amsart} 

%-------Packages---------
\usepackage{amsmath, amsthm, enumerate} 
\usepackage{tikz} 

%-------Theorem Environments---------
\newtheorem{thm}{Theorem}[section]
\newtheorem*{thm*}{Theorem}
\newtheorem{cor}[thm]{Corollary}
\newtheorem*{cor*}{Corollary}
\newtheorem{prop}[thm]{Proposition}
\newtheorem*{prop*}{Proposition}
\newtheorem{lem}[thm]{Lemma}
\newtheorem*{lem*}{Lemma}
\newtheorem{conj}[thm]{Conjecture}
\newtheorem*{conj*}{Conjecture}
\newtheorem{quest}[thm]{Question}
\newtheorem*{quest*}{Question}

\theoremstyle{definition}
\newtheorem{defn}[thm]{Definition}
\newtheorem{defns}[thm]{Definitions}
\newtheorem{con}[thm]{Construction}
\newtheorem{exmp}[thm]{Example}
\newtheorem{exmps}[thm]{Examples}
\newtheorem{notn}[thm]{Notation}
\newtheorem{notns}[thm]{Notations}
\newtheorem{exer}[thm]{Exercise}
\newtheorem{princ}[thm]{Principle}
\newtheorem*{princ*}{Principle}

\theoremstyle{remark}
\newtheorem{rem}[thm]{Remark}
\newtheorem{rems}[thm]{Remarks}
\newtheorem{warn}[thm]{Warning}
\newtheorem{ack}[thm]{Acknowledgements}
\newtheorem*{ack*}{Acknowledgements}


%--------Meta Data: Fill in your info------
\title{} 
\author{} 
\date{}

\begin{document}
\maketitle

\section{}

\begin{thm}[] 
\end{thm}
	\begin{proof} 
	\end{proof}

\bibliographystyle{plain}  

\bibliography{report.bib}

\end{document}

