Preface Contributors to the 4\(^\mathrm{th}\) Edition

<preface xml:id="contributors" xmlns:pi="http://pretextbook.org/2020/pretext/internal">
    <title>Contributors to the 4<m>^\mathrm{th}</m> Edition</title>

    <p>Many individuals have made this book possible.  We will try to thank a few of them here, and hope we have not forgotten anybody really important.</p>

    <contributors>
        <contributor xml:id="tjudson">
            <personname>Thomas Judson</personname>
            <department>Department of Mathematics and Statistics</department>
            <institution>Stephen F. Austin State University</institution>
            <email>judsontw@sfasu.edu</email>
        </contributor>

        <contributor xml:id="dfarmer">
            <personname>David Farmer</personname>
            <institution>American Institute of Mathematics</institution>
            <email>farmer@aimath.org</email>
        </contributor>

        <contributor>
            <personname>Robert Beezer</personname>
            <department>Department of Mathematics and Computer Science</department>
            <institution>University of Puget Sound</institution>
            <location>Tacoma, Washington, USA</location>
            <email>beezer@pugetsound.edu</email>
        </contributor>

        <contributor>
            <personname>Alex Jordan</personname>
            <department>Department of Mathematics</department>
            <institution>Portland Community College</institution>
            <location>Portland, OR</location>
            <email>alex.jordan@pcc.edu</email>
        </contributor>

        <contributor>
            <personname>Thomas Judson</personname>
            <department>Department of Mathematics and Statistics</department>
            <institution>Stephen F. Austin State University</institution>
            <email>judsontw@sfasu.edu</email>
        </contributor>

        <contributor>
            <personname>David Farmer</personname>
            <institution>American Institute of Mathematics</institution>
            <email>farmer@aimath.org</email>
        </contributor>

        <contributor>
            <personname>Robert Beezer</personname>
            <department>Department of Mathematics and Computer Science</department>
            <institution>University of Puget Sound</institution>
            <location>Tacoma, Washington, USA</location>
            <email>beezer@pugetsound.edu</email>
        </contributor>

        <contributor xml:id="ajordan">
            <personname>Alex Jordan</personname>
            <department>Department of Mathematics</department>
            <institution>Portland Community College</institution>
            <location>Portland, OR</location>
            <email>alex.jordan@pcc.edu</email>
        </contributor>

        <contributor>
            <personname>Thomas Judson</personname>
            <department>Department of Mathematics and Statistics</department>
            <institution>Stephen F. Austin State University</institution>
            <email>judsontw@sfasu.edu</email>
        </contributor>

        <contributor>
            <personname>David Farmer</personname>
            <institution>American Institute of Mathematics</institution>
            <email>farmer@aimath.org</email>
        </contributor>

        <contributor>
            <personname>Robert Beezer</personname>
            <department>Department of Mathematics and Computer Science</department>
            <institution>University of Puget Sound</institution>
            <location>Tacoma, Washington, USA</location>
            <email>beezer@pugetsound.edu</email>
        </contributor>

        <contributor>
            <personname>Alex Jordan</personname>
            <department>Department of Mathematics</department>
            <institution>Portland Community College</institution>
            <location>Portland, OR</location>
            <email>alex.jordan@pcc.edu</email>
        </contributor>

        <contributor>
            <personname>Thomas Judson</personname>
            <department>Department of Mathematics and Statistics</department>
            <institution>Stephen F. Austin State University</institution>
            <email>judsontw@sfasu.edu</email>
        </contributor>

        <contributor>
            <personname>David Farmer</personname>
            <institution>American Institute of Mathematics</institution>
            <email>farmer@aimath.org</email>
        </contributor>

        <contributor xml:id="rbeezer">
            <personname>Robert Beezer</personname>
            <department>Department of Mathematics and Computer Science</department>
            <institution>University of Puget Sound</institution>
            <location>Tacoma, Washington, USA</location>
            <email>beezer@pugetsound.edu</email>
        </contributor>

        <contributor>
            <personname>Alex Jordan</personname>
            <department>Department of Mathematics</department>
            <institution>Portland Community College</institution>
            <location>Portland, OR</location>
            <email>alex.jordan@pcc.edu</email>
        </contributor>

        <contributor>
            <personname>Thomas Judson</personname>
            <department>Department of Mathematics and Statistics</department>
            <institution>Stephen F. Austin State University</institution>
            <email>judsontw@sfasu.edu</email>
        </contributor>

        <contributor>
            <personname>David Farmer</personname>
            <institution>American Institute of Mathematics</institution>
            <email>farmer@aimath.org</email>
        </contributor>

        <contributor>
            <personname>Robert Beezer</personname>
            <department>Department of Mathematics and Computer Science</department>
            <institution>University of Puget Sound</institution>
            <location>Tacoma, Washington, USA</location>
            <email>beezer@pugetsound.edu</email>
        </contributor>

        <contributor>
            <personname>Alex Jordan</personname>
            <department>Department of Mathematics</department>
            <institution>Portland Community College</institution>
            <location>Portland, OR</location>
            <email>alex.jordan@pcc.edu</email>
        </contributor>
    </contributors>

    <p>That's it.  Thanks everybody.</p>

</preface>