% The Delta-Epsilon Style Sheet
%
% author: A. Tomberg, modified by L. Belzile
% date : 23.11.2009 for v2.0, 27.02.2013 for v2.1
% version: v2.1
%
% Notes: to be used with the combine document class.
% > To import a new article do: \newarticle{title}{author}\import{.tex}
% > Bibtex has to be run separately on each article that uses it.

\ProvidesPackage{DE}


%--------- PACKAGES -----------


\usepackage{mathrsfs}
\usepackage{amsmath, amsthm, amssymb, amsfonts}
\usepackage{mathtools}
%\usepackage{mathptmx}
\usepackage{color, graphicx}
\usepackage[table]{xcolor}
\usepackage{geometry}
\usepackage{multicol, multirow}
\usepackage{array}
\usepackage{sectsty}
\usepackage{fancyhdr}
\usepackage{url}
\usepackage{wrapfig}
\usepackage{verbatim}
\usepackage[all]{xy}
\usepackage{enumerate}
\usepackage{enumitem}
\usepackage{latexsym,graphics}%,styles}
\usepackage{tikz}
%\usepackage[frenchb,english]{babel}
\usepackage[english]{babel}
\usepackage[utf8x]{inputenc}
%\usepackage{pslatex}
%\usepackage{fullpage}
\usepackage{wrapfig}
%\usepackage{cite}
%\usepackage[round]{natbib}
\usepackage{relsize}
\usepackage{setspace}
%\setstretch{2}


%\usepackage{nameref}
% \usepackage{hyperref}
% \hypersetup{pdfborder={0 0 0},
% colorlinks=true,
% linkcolor=black,
% citecolor=black,
% urlcolor=black}
% \urlstyle{same}


%For French formatting
%\usepackage{FrenchDE}


%--------- THEOREMS ---------


\newtheorem{thm}{Theorem}
\newtheorem{lem}[thm]{Lemma}
\newtheorem{prop}[thm]{Proposition}
\newtheorem{cor}[thm]{Corollary}
\newtheorem{fact}[thm]{Fact}
\newtheorem{defn}{Definition}
\newtheorem{conseq}[thm]{Consequence}
\newtheorem{problem}[thm]{Problem}
\newtheorem{claim}[thm]{Claim}


\theoremstyle{definition}
\newtheorem*{exm}{Example}
\newtheorem{ex}{Example}
\theoremstyle{remark}
\newtheorem*{rmk}{Remark}


%--------- COMMANDS ---------
\DeclareMathOperator{\rank}{rank}
\DeclareMathOperator{\height}{height}
\DeclareMathOperator{\Tr}{Tr}
\newcommand{\V}[1]{\text{V}\left(#1\right)}
\newcommand{\E}[1]{\text{E}\left(#1\right)}
\newcommand{\BZ}{\mathbb Z}
\newcommand{\BN}{\mathbb N}
\newcommand{\BR}{\mathbb R}
\newcommand{\BC}{\mathbb C}
\newcommand{\BQ}{\mathbb Q}
\newcommand{\negfour}{\negthickspace\negthickspace\negthickspace\negthickspace}


\providecommand{\abs}[1]{\left\lvert#1\right\rvert}


%---------- MACROS ----------


% Our name
\newcommand{\deleps}{\textsc{The 
$\delta$elta-$\varepsilon$psilon}}
\newcommand{\mumj}{\textsc{McGill Undergraduate Mathematics Journal}}


% Putting author and title in the header
\newcommand{\authortochead}[1]{\coltocauthor{#1}\fancyhead[RE]{#1}}
\newcommand{\titletochead}[1]{\coltoctitle{#1}\fancyhead[LO]{#1}}


% New article command
\newcommand{\newarticle}[2]{
\setcounter{thm}{0}
\begin{center} {\Large \textsc{#1}} \\ \vspace{6pt}\textsl{#2}\end{center}
\titletochead{#1} \authortochead{#2} }


%New article with shortening of toc and header title
\newcommand{\newarticleshort}[3]{
\setcounter{thm}{0}
\begin{center} {\Large \textsc{#1}} \\ \vspace{6pt}\textsl{#3}\end{center}
\titletochead{#2} \authortochead{#3} }


% Remove the word "Abstract" before the abstract
\addto\captionsenglish{\renewcommand{\abstractname}{\vspace{-1pc}}}


% Command for typestting questions in interviews
\newcommand{\Q}[1]{\paragraph{$\delta\varepsilon$:}\textbf{#1}\\}


% Jokes environment (one-column)
\newenvironment{jokes}{\setcounter{figure}{0}\smallskip \noindent \textsc{Jokes and Comics} 
\hrulefill \bigskip \\ }


%--------- FIGURES ----------
\makeatletter
\newenvironment{tablehere}
  {\vspace{6pt}\begin{center}\def\@captype{table}}
  {\end{center}}


\newenvironment{figurehere}
  {\vspace{6pt}\begin{center}\def\@captype{figure}}
  {\end{center}}


\makeatother


%----------- FONT -----------
 
% We use roman fonts.
 
%\fontfamily{cmr}
%\selectfont


\usepackage{lmodern}
\usepackage[sc]{mathpazo}
\renewcommand\rmdefault{ppl}
%---------- MARGINS ---------
%1pc = 12pt, 1in = 72.27pt


\geometry{letterpaper, twoside, verbose, ignoremp,
bindingoffset = 4pc, %3
right = 4pc, %4
columnsep = 2pc,
top = .9in,
bottom = .9in}


%------- HEADINGS STYLE -----


\sectionfont{\normalfont\large\centering\scshape}
\subsectionfont{\normalfont\large\itshape}
\subsubsectionfont{\normalfont\normalsize\itshape}


%------- HEADER/FOOTER ------


\pagestyle{fancy}
\renewcommand{\footrulewidth}{0.4pt}
%\renewcommand{\headheight}{18pt}


\fancyhead[RO,LE]{\thepage}
\fancyhead[CE,CO]{}


\fancyfoot[C]{}
\fancyfoot[RO,LE]{\deleps}
\fancyfoot[RE,LO]{\mumj}