Front Matter

\( \DeclareMathOperator{\Inn}{Inn} \DeclareMathOperator{\lcm}{lcm} \DeclareMathOperator{\Aut}{Aut} \DeclareMathOperator{\Perm}{Perm} \DeclareMathOperator{\Stab}{Stab} \DeclareMathOperator{\Orb}{Orb} \DeclareMathOperator{\Rot}{Rot} \DeclareMathOperator{\re}{Re} \DeclareMathOperator{\im}{Im} \DeclareMathOperator{\img}{image} \DeclareMathOperator{\conj}{conj} \DeclareMathOperator{\Id}{Id} \newcommand{\C}{\mathbb{C}} \newcommand{\Quat}{\mathbb{H}} \newcommand{\extC}{\hat{\C}} \newcommand{\R}{\mathbb{R}} \newcommand{\extR}{\hat{\R}} \newcommand{\F}{\mathbb{F}} \newcommand{\extF}{\hat{\F}} \newcommand{\Z}{\mathbb{Z}} \newcommand{\Proj}{\mathbb{P}} \newcommand{\Q}{\mathbb{Q}} \newcommand{\M}{{\rm \bf M}} \newcommand{\E}{{\rm \bf E}} \renewcommand{\H}{{\rm \bf H}} \newcommand{\HU}{\H_{\U}} \renewcommand{\S}{{\rm \bf S}} \newcommand{\D}{\mathbb{D}} \newcommand{\closedD}{\hat{\D}} \newcommand{\U}{\mathbb{U}} \newcommand{\spacer}{\rule[0cm]{0cm}{0cm}} \newcommand{\MOD}{\mathbin{\text{MOD}}} \newcommand{\twotwo}[4]{\left[ \begin{array}{cc} #1 \amp #2 \\ #3 \amp #4 \end{array} \right]} \newcommand{\lt}{<} \newcommand{\gt}{>} \newcommand{\amp}{&} \definecolor{fillinmathshade}{gray}{0.9} \newcommand{\fillinmath}[1]{\mathchoice{\colorbox{fillinmathshade}{$\displaystyle \phantom{\,#1\,}$}}{\colorbox{fillinmathshade}{$\textstyle \phantom{\,#1\,}$}}{\colorbox{fillinmathshade}{$\scriptstyle \phantom{\,#1\,}$}}{\colorbox{fillinmathshade}{$\scriptscriptstyle\phantom{\,#1\,}$}}} \)

Sample Textbook

David W. Lyons

Department of Mathematical Sciences
Lebanon Valley College
Annville, PA, USA
lyons@lvc.edu

Preface Preface

This online textbook is a sample math textbook section for practice in reading, solving problems, and submitting homework.