-\numberwithin{equation}{section} %% Comment out for sequentially-numbered
-\numberwithin{figure}{section} %% Comment out for sequentially-numbered
-\providecommand{\theoremname}{Theorem}
-\theoremstyle{plain}
-\newtheorem{thm}{\protect\theoremname}\theoremstyle{plain}
-\newtheorem{lem}[thm]{Lemma}
-