\documentclass[12pt]{article} \textwidth 6.6in \oddsidemargin 0.0in \evensidemargin 0.0in \textheight 9.0in \topmargin -0.3in %label 1 %label 2 \usepackage{amsthm} \usepackage{latexsym} \usepackage{euscript} \usepackage{amscd} \usepackage{amssymb} \usepackage{amsmath} \usepackage{mathrsfs} %label 3 \newtheorem{Def}{Definition} \newtheorem{thm}{Theorem} %label 4 \newcommand{\N}{\mathbb N} \newcommand{\Z}{\mathbb Z} \newcommand{\Q}{\mathbb Q} \newcommand{\R}{\mathbb R} \newcommand{\C}{\mathbb C} \newcommand{\LL}{\emph{ }\textless\emph{ }} \newcommand{\GG}{\emph{ }\textgreater\emph{ }} \newcommand{\llll}{\textquotedblleft\emph{ }} \newcommand{\lllo}{\textquotedblleft} \newcommand{\gggg}{\textquotedblright\emph{ }} \newcommand{\gggo}{\textquotedblright} \newcommand{\be}{\$} \newcommand{\s}{\be \mathcal{O}} \newcommand{\ifff}{\Longleftrightarrow} \newcommand{\then}{\Longrightarrow} \newcommand{\all}{\forall} \newcommand{\exi}{\exists} \newcommand{\uni}{\exists!} \newcommand{\n}{\centerdot\emph{ }} \begin{document} \title{\textbf{...}} \author{Wang-Shiuan Pahngerei} \maketitle \date %begin --------------- \end{document}