common.sty

% A collection of frequently used commands
% This file is located in ~/Library/texmf/tex/latex/common/

\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{common}[2018/10/27 v1.0 Siddharth Mahendraker]

% -- Typography --
\RequirePackage[utf8]{inputenc}
\RequirePackage{microtype}
\RequirePackage{parskip}

% -- Fonts --
\RequirePackage{mathpazo}
%\RequirePackage{palatino}
\RequirePackage{eulervm}
\usepackage[scaled=.90]{helvet}
\usepackage{courier}

\RequirePackage[T1]{fontenc}

% -- Math --
\RequirePackage{amsmath}
\RequirePackage{amssymb}
\RequirePackage{mathtools}

\RequirePackage{amsthm}
\RequirePackage{thmtools, thm-restate}

% -- Fixes amsthm error which occurs when using parskip
% -- See https://tex.stackexchange.com/questions/25346/wrong-spacing-before-theorem-environment-amsthm
\begingroup
    \makeatletter
    \@for\theoremstyle:=definition,remark,plain\do{%
        \expandafter\g@addto@macro\csname th@\theoremstyle\endcsname{%
            \addtolength\thm@preskip\parskip
            }%
        }
\endgroup

\declaretheorem[name=Theorem,%
refname={theorem,theorems},%
Refname={Theorem,Theorems},%
within=section]{theorem}

\declaretheorem[name=Proposition,%
refname={proposition,propositions},%
Refname={Proposition,Propositions},%
sibling=theorem]{proposition}

\declaretheorem[name=Lemma,%
refname={lemma,lemmas},%
Refname={Lemma,Lemmas},%
sibling=theorem]{lemma}

\declaretheorem[name=Definition,%
refname={definition,definitions},%
Refname={Definition,Definitions},%
sibling=theorem]{definition}

\declaretheorem[name=Corollary,%
refname={corollary,corollaries},%
Refname={Corollary,Corollaries},%
sibling=theorem]{corollary}

% -- Misc. --
\RequirePackage{hyperref}
\RequirePackage{color}
\RequirePackage{array}
\RequirePackage{url}

% -- Common commands and abbreviations --

\providecommand{\F}{}
\renewcommand{\F}{\mathbb{F}}
\providecommand{\Q}{}
\renewcommand{\Q}{\mathbb{Q}}
\providecommand{\C}{}
\renewcommand{\C}{\mathbb{C}}
\providecommand{\Z}{}
\renewcommand{\Z}{\mathbb{Z}}
\providecommand{\R}{}
\renewcommand{\R}{\mathbb{R}}

\providecommand{\A}{}
\renewcommand{\A}{\mathbb{A}}
\providecommand{\P}{}
\renewcommand{\P}{\mathbb{P}}

%\renewcommand{\to}{\longrightarrow}

\providecommand{\O}{}
\renewcommand{\O}{\mathcal{O}}
\providecommand{\p}{}
\renewcommand{\p}{\mathfrak{p}}
\providecommand{\q}{}
\renewcommand{\q}{\mathfrak{q}}

\DeclareMathOperator{\x}{\times}

\DeclareMathOperator{\tr}{tr}
\DeclareMathOperator{\ind}{Ind}

\DeclareMathOperator{\im}{im}

\newcommand{\mat}[4]{%
\bigl(
	\begin{smallmatrix}
		#1&#2 \\%
		#3&#4
	\end{smallmatrix}
\bigr)}

\newcommand{\Mat}[4]{%
\begin{pmatrix}
	#1 & #2 \\%
	#3 & #4
\end{pmatrix}}

\newcommand{\legendre}[2]{\genfrac{(}{)}{}{}{#1}{#2}}