preamble.tex: LaTeX Preamble Template (Will Wolff-Myren)

preamble.tex

%% preamble.tex: LaTeX Preamble Template (Will Wolff-Myren) %%

\usepackage{amsmath, amsthm, amssymb, enumerate, setspace}
\usepackage{mathtools} % https://ctan.org/pkg/mathtools
\usepackage{fancyhdr} % Fancy header. ;-)
\usepackage{titlesec} % For chapter/section/subsection customizations
\usepackage{hyperref} % https://www.andy-roberts.net/writing/latex/pdfs
\usepackage{tcolorbox} % For references from the book
\usepackage{relsize} % For resizing fractions in displaymath
\usepackage{marvosym} % For the contradiction lightning bolt
\usepackage[hmargin=0.8in,vmargin=1in]{geometry}

%% Document Setup %%
\makeatletter
\let\Title\@title
\let\Author\@author
\let\Date\@date
\makeatother

%% \usepackage{fancyhdr} %%
\pagestyle{fancy}
\setlength{\headheight}{25pt}
\lhead{\Title}
\rhead{\Author}

%% \usepackage{hyperref} %%
\hypersetup{
    pdfauthor={\Author},
    pdftitle={\Title}
}

%% \usepackage{titlesec} %%
% https://www.overleaf.com/learn/latex/Sections_and_chapters %
\titleformat{\subsection}[runin]{\normalfont\bfseries}{\thesubsection}{}{}
\titleformat{\subsubsection}[runin]{\normalfont\bfseries}{\thesubsubsection}{}{}

%% Spacing/Formatting %%
\linespread{1.1}
\setlength{\parskip}{0.5em}

\newcommand{\skipqed}{\let\qed\relax}
\newcommand{\ds}{\displaystyle}
\newcommand{\br}{\vspace{3mm}}

% Making epsilons look like epsilons...
\renewcommand{\epsilon}{\varepsilon}

%% Constants %%
\newcommand{\eps}{\epsilon}
\newcommand{\A}{\forall}
\newcommand{\E}{\exists}
\newcommand{\N}{\mathbb{N}}
\newcommand{\Q}{\mathbb{Q}}
\newcommand{\R}{\mathbb{R}}
\newcommand{\Z}{\mathbb{Z}}

%% Convenience Wrappers %%
\newcommand{\pf}[1]{\noindent\textit{Proof (#1):}\br}
\newcommand{\seq}[1]{\{#1\}}
\newcommand{\linf}[1]{\lim_{#1\to\infty}}