\documentclass[11pt,letterpaper]{book}
\usepackage{amsmath,amssymb,amsthm,graphicx,tikz,tikz-cd,fancyhdr}
\usepackage[nottoc]{tocbibind}
\usepackage[backend=bibtex,sorting=nyt,maxbibnames=99]{biblatex}
\usepackage[margin=1.25in]{geometry}
\usepackage[english]{babel}
\usepackage{microtype}
\usepackage[toc]{appendix}
\usepackage[symbols,nogroupskip,sort=none]{glossaries-extra}
\usepackage{etoolbox}
\usepackage{lipsum}
\usepackage{silence}
\WarningsOff[biblatex]

\setcounter{secnumdepth}{5}
\renewcommand{\theparagraph}{\arabic{paragraph}}
\allowdisplaybreaks
\newenvironment{abstract}%
{\cleardoublepage\null \vfill\begin{center}%
	\bfseries \abstractname \end{center}}%
	{\vfill\null }
\usepackage[hidelinks]{hyperref}
\addto\captionsenglish{%
  \renewcommand{\contentsname}%
    {Table of Contents}%
}

\newcommand{\printlist}[2][\\]{{
  \def\listsep{\def\listsep{#1}}% Delayed execution of list separator
  \renewcommand{\do}[1]{\listsep \underline{Committee Member}\\##1}%
  \dolistloop\committeelist
}}

\newcommand{\printchapters}[2][\pagebreak]{{
  \def\listsep{\def\listsep{#1}}% Delayed execution of list separator
  \renewcommand{\do}[1]{\listsep \include{##1/main.tex}}%
  \dolistloop\chapterlist
}}

\fancyhead{}
\fancyfoot[C]{\thepage}

\newif\ifdedication
\newif\ifacknowledgements
\newif\iffigures
\newif\ifsymbols
\newif\iftables
\newif\ifappendix

\input{definitions.tex}
\input{definitions-extra.tex}

\bibliography{\biblatexfile}