packagebundle.sty

\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{packagebundle}
%[2022/02/09 v0.1 A custom-made LaTeX package for stylish math writing]

\RequirePackage[margin=1.25in]{geometry}
\RequirePackage[bookmarksdepth=4]{hyperref}
\RequirePackage{pdfpages}
\RequirePackage{xcolor}
\RequirePackage{enumitem}
\setlist[enumerate]{itemsep=-1mm}
\RequirePackage[toc, page]{appendix}
%\RequirePackage[backend=biber]{biblatex}

\RequirePackage[sc, small, center]{titlesec}
% small caps, small titles, center alignment
\titlespacing*{\chapter}{0pt}{0pt}{20pt}

\RequirePackage{etoolbox}
\RequirePackage{mathtools}
\RequirePackage{amssymb}
\RequirePackage{amsthm}
\RequirePackage{amsfonts}

\RequirePackage{pict2e}
\RequirePackage{tikz}

\RequirePackage{upgreek}

%\swapnumbers
\setlength{\topsep}{8pt}
\theoremstyle{plain}
\newtheorem{theorem}{Theorem}[chapter]
\newtheorem{corollary}[theorem]{Corollary}
\newtheorem{claim}[theorem]{Claim}
\newtheorem{lemma}[theorem]{Lemma}
\newtheorem{proposition}[theorem]{Proposition}
\newtheorem{propdef}[theorem]{Proposition/Definition}
\newtheorem{theodef}[theorem]{Theorem/Definition}
\newtheorem{conjecture}[theorem]{Conjecture}

\theoremstyle{defintion}
\newtheorem{definition}[theorem]{Definition}
\newtheorem{axiom}[theorem]{Axiom}
\newtheorem{example}[theorem]{Example}
\newtheorem{exercise}[theorem]{Exercise}

\theoremstyle{remark}
\newtheorem{remark}[theorem]{Remark}
\newtheorem*{note}{Note}

%%%%%%%%%%%%%%%%%%%%%%%%%%% proof redefined
\makeatletter
\renewenvironment{proof}[1][\proofname]{\par
  %\vspace{-\topsep}% remove the space after the theorem
  \pushQED{\qed}%
  \normalfont
  \topsep0pt \partopsep0pt % no space before
  \trivlist
  \item[\hskip\labelsep
        \itshape
    #1\@addpunct{.}]\ignorespaces
}{%
  \popQED\endtrivlist\@endpefalse
  \addvspace{6pt plus 6pt} % some space after
}
\makeatother

\hypersetup{
		colorlinks=false,
		linkcolor=blue,
		filecolor=magenta,
		urlcolor=blue
              }

\linespread{1}

\newcommand{\tab}{\hspace*{2em}}

\newcommand{\R}{\ensuremath{\mathbb{R}} }
\newcommand{\C}{\ensuremath{\mathbb{C}} }
\newcommand{\F}{\ensuremath{\mathbb{F}} }
\newcommand{\N}{\ensuremath{\mathbb{N}} }
\newcommand{\Z}{\ensuremath{\mathbb{Z}} }
\newcommand{\Q}{\ensuremath{\mathbb{Q}} }

\newcommand{\Wlog}{Without loss of generality}
\newcommand{\wrt}{with respect to}
\newcommand{\st}{such that}

\endinput