%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%% theorem stuff ...
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%%% comment the following line out to get theorems and such numbered
%%% on the left
%%\swapnumbers

%%% Define UNTtheorems style for theorems, lemmas, etc... and
%%% UNTdefinitions for definitions notes, whatever -- the idea is
%%% that only statements that require proof of some sort should be in
%%% math italics, other highlighted statements should be in the normal
%%% text font.
\newtheoremstyle{UNTtheorems}% name
  {10pt}%      Space above
  {0pt}%      Space below
  {\itshape}%         Body font
  {}%         Indent amount (empty = no indent, \parindent = paragraph indent)
  {\scshape}% Thm head font
  {.}%        Punctuation after thm head
  {.5em}%     Space after thm head: " " = normal interword space;
        %       \newline = linebreak
  {}%         Thm head spec (can be left empty, meaning `normal')

\newtheoremstyle{UNTdefinitions}% name
  {10pt}%      Space above
  {10pt}%      Space below
  {}%         Body font
  {}%         Indent amount (empty = no indent, \parindent = paragraph indent)
  {\scshape}% Thm head font
  {.}%        Punctuation after thm head
  {.5em}%     Space after thm head: " " = normal interword space;
        %       \newline = linebreak
  {}%         Thm head spec (can be left empty, meaning `normal')

%%% Now define the theorem and definition environment names

%%% The following environments will be in UNTtheorem style
\theoremstyle{UNTtheorems}
\newtheorem{lemma}{Lemma}[chapter]
\newtheorem{corollary}[lemma]{Corollary} 
\newtheorem{proposition}[lemma]{Proposition}
\newtheorem{theorem}[lemma]{Theorem}
\newtheorem{claim}[lemma]{Claim}

%%% The following environments will be in UNTdefinition style
\theoremstyle{UNTdefinitions}
\newtheorem{definition}[lemma]{Definition}
\newtheorem{assumption}[lemma]{Assumption}
\newtheorem{convention}[lemma]{Convention} 
\newtheorem{remark}[lemma]{Remark}
\newtheorem{example}[lemma]{Example} 


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%% formatting stuff...
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%
%%% Page Dimensions
%%%
%%% \voffset shifts the whole ``page'' up (negative) or down (positive)
%%% on the paper.
%%%
%%% \topmargin is the distance from 1'' down on the page (assuming
%%% \voffset=0pt) and the top of the headline.
%%%
%%% \headheight is the height of the headline above its baseline
%%%
%%% \headsep is the distance from the baseline of the headline to the
%%% top of the page body.
%%%
%%% The first baseline for a line on the page body is:
%%% 1'' + \topmargin + \headheight + \headsep + point size (12pt)
%%%
%%% \textheight is the goal distance from the top of the first line of text
%%% to the baseline of the last line of text. 
%%%
%%% If TeX can't get a baseline exactly \texheight from the top of the
%%% first line of text, the first line stays put and space is added
%%% ``more-or-less'' evenly between each line of text on the page.
%%%
%%% \footsep is the distance from the bottom of the body of the text
%%% on the page to the baseline of the footline.
%%%
%%% To get page numbers .5in = 36pt from the bottom of the page for 8
%%% 1/2 x 11 paper, we need:
%%% 1'' + \topmargin + \headheight + \headsep + \textheight + \footskip
%%% = 756 pt -- except that this results in page numbers that look too
%%% low. Mess with \textheight and \footskip to change the size of the
%%% body of the page and the distance from the last baseline to the
%%% baseline of the footline. To move the whole shebang up, using
%%% \voffset is probably safest.
\setlength{\voffset}{0pt}
\setlength{\topmargin}{0pt}
\setlength{\headheight}{0pt}
\setlength{\headsep}{0pt}
\setlength{\textheight}{636pt} % 648pt = 9in
\setlength{\footskip}{36pt} %Exercise: Solve Xpt = .5in for X.

%%% \hoffset is the horizontal analog of \voffset, positive to shift
%%% right, negative to shift left
%%%
%%% \oddsidemargin is the left hand margin minus 1'' on odd numbered
%%% pages.
%%% \evensidemargin is the left hand margin minus 1'' on even numbered
%%% pages. 
%%%
%%% \textwidth is the width of the body of the text on the page.
\setlength{\hoffset}{0pt}
\setlength{\evensidemargin}{0pt}
\setlength{\oddsidemargin}{0pt}
\setlength{\textwidth}{6.5in}

%%% ``Double'' spacing can be achieved by either of the following --
%%% the LaTeX book recommends \baselinestretch and some online source
%%% says \linespread is to draconian.
\renewcommand{\baselinestretch}{1.66}
%\linespread{1.66}


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Modifying amsbook.cls 
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%
%%% The following supersedes the amsbook.cls class file.
%%%

%%% \makeatletter is necessary to be able to access the more primitive
%%% macros in amsbook.cls (usually @ is a special character for
%%% AMSLaTeX). 
\makeatletter

%%% This is the page style, no headline, footline contains the page
%%% number, which is centered. 
\pagestyle{plain} 

%%% AMS document classes seem to like scriptsize page numbers. Why both
%%% of the following definitions are needed, I have NO EARTHLY IDEA, but
%%% it might have to do with what the AMS Tex gremlins put into
%%% \AtBeginDocument ...... or not. 
%%%In any case, this seems to give 12 point page numbers.
\def\ps@plain{\ps@empty%
  \def\@oddfoot{\normalfont \hfil\textrm{\thepage}\hfil}%
  \let\@evenfoot\@oddfoot}
  \renewcommand{\@evenfoot}{\hfil\textrm{\thepage}\hfil}%
  \renewcommand{\@oddfoot}{\@evenfoot}%
 
%%% The numbering commands: 
%%% chapters and sections are in arabic numerals  and sections are
%%% numbered as chapter.section.
%%% Only chapters (level 1 heads) and sections (level two heads) are
%%% numbered and these are the only headings that will appear in the
%%% table of contents. Changing \secnumdepth will change this behavior
%%% If it's increased, the table of contents and the document itself
%%% will become more confusing for a reader and some \subsubsection
%%% commands will need to be modified.
\renewcommand\thechapter {\arabic{chapter}}%
\renewcommand{\thechapter}{\arabic{chapter}}
\renewcommand{\thesection}{\thechapter.\arabic{section}}
\setcounter{secnumdepth}{1}

%%% This redefines the \section command so that it's flush left and the
%%% font is the normal text font.
\renewcommand\section{\@startsection{section}{1}%
  \z@{.35\linespacing\@plus\linespacing}{.25\linespacing}%
  {\normalfont}}

%%% This redefines the \subsection command so that it's flush left and
%%% italicized.
\renewcommand\subsection{\@startsection{subsection}{2}%
  \z@{.35\linespacing\@plus.7\linespacing}{.25\linespacing}%
  {\normalfont\itshape}}

%%% These redefine how chapters are started and the table of contents
%%% entries are written... \@makechapterhead is
%%% for numbered chapters (called with \chapter{my chapter}), which
%%% will be all in upper case, and \@makeshapterhead is for unnumbered
%%% chapters, such as an appendix, if there's only one, and the table
%%% of contents (it's called with \chapter*{my unnumbered
%%% chapter}). For example, \chapter*{Appendix} would be a great way
%%% to start an appendix. If there's more than one appendix, then look
%%% up how the \appendix command affects chapter numbering...
\renewcommand\@makechapterhead[1]{\global\topskip 7.5pc\relax%
  \begingroup%
  \fontsize{\@xivpt}{18}\centering%
    \ifnum\c@secnumdepth>\m@ne%
      \leavevmode \hskip-\leftskip%
      \rlap{\vbox to\z@{\vss%
          \centerline{\normalsize\mdseries%
              \uppercase\@xp{\chaptername}\enspace\thechapter}%
          \vskip 3pc}}\hskip\leftskip\fi%
     \uppercase{#1}\par \endgroup%
  \skip@34\p@ \advance\skip@-\normalbaselineskip%
  \vskip\skip@}

\renewcommand\@makeschapterhead[1]{\global\topskip 7.5pc\relax%
  \begingroup%
  \fontsize{\@xivpt}{18}\centering\uppercase{#1}\par \endgroup%
  \skip@34\p@ \advance\skip@-\normalbaselineskip%
  \vskip\skip@ }

%%% Make the contents, chapter and appendix all uppercase.
\renewcommand\contentsname{CONTENTS}
\renewcommand\chaptername{CHAPTER}
\renewcommand\appendixname{APPENDIX}
\renewcommand\bibname{BIBLIOGRAPHY}

%%% This redfines the proof environment -- the only change to the
%%% original is to have ``Proof:'' appear in caps/smallcaps and not
%%% bold. 
\renewenvironment{proof}[1][\proofname]{\par
  \pushQED{\qed}%
  \normalfont \topsep6\p@\@plus6\p@\relax
  \trivlist
  \itemindent0pt
  \item[\hskip\labelsep
        \scshape
    #1\@addpunct{.}]\ignorespaces
}{%
  \popQED\endtrivlist\@endpefalse
}

%%% Here's where the titlepage magic happens...
\renewcommand\titlepage{%
  \clearpage
  \thispagestyle{empty}\setcounter{page}{0}}

\renewcommand\maketitle{\par
  \@topnum\z@ % this prevents figures from falling at the top of page 1
  \begingroup
  \@maketitle
  \endgroup
  \c@footnote\z@
  \def\do##1{\let##1\relax}%
  \do\maketitle \do\@maketitle \do\title \do\@xtitle \do\@title
  \do\author \do\@xauthor \do\address \do\@xaddress
  \do\email \do\@xemail \do\curraddr \do\@xcurraddr
  \do\dedicatory \do\@dedicatory \do\thanks \do\thankses
  \do\keywords \do\@keywords \do\subjclass \do\@subjclass
}
\renewcommand*{\title}[1]{\gdef\@title{\uppercase {#1}}}
\renewcommand\@maketitle{%
  \clearpage \thispagestyle{empty}%
  \begingroup \topskip\z@skip \null
  \vfil 
  \begingroup \centering \@title\par 
    \def\and{\par\medskip}\centering
    \mdseries\authors\par\bigskip 
  \endgroup 
  \vfill
  \begingroup \centering
  \ifx\@empty\degree \else  \@degree\par \fi 
  \vfill 
  \ifx\@empty\degreedate \else \@degreedate\par  \fi 
  \endgroup
  \vfill 
  \begingroup
  \parindent=0pt
  \raggedleft
  \begin{tabular}{l}
  APPROVED: \\ \noalign{\smallskip} \@approved
  \end{tabular}\par
  \endgroup
  \endgroup}

\newcommand\degree[1]{\def\@degree{#1}}
\let\@degree=\@empty
\newcommand\degreedate[1]{\def\@degreedate{UNIVERSITY OF NORTH TEXAS\\
    #1}}
\let\@degreedate=\@empty

\newcommand\approved[1]{\def\@approved{#1}}
\let\@approved\@empty

%%% These need to be redefined to disable the usual AMS book style
%%% which mandates inserting blank pages all over creation. To get
%%% blank pages between the frontmatter, mainmatter, and backmatter,
%%% replace \clearpage with \cleardouble page.
\def\frontmatter{\clearpage\pagenumbering{roman}}
\def\mainmatter{\clearpage\pagenumbering{arabic}}
\def\backmatter{\if@openright\clearpage\else\clearpage\fi}


%%% Get rid of the bold face in citations.
\def\@cite#1#2{{%
    \m@th\upshape\mdseries[{#1}{\if@tempswa, #2\fi}]}}


%%% @ needs to go back to being an active character.
\makeatother

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% This will change the figure and table numbers for the TOC
% added 4-3-2006

\setcounter{secnumdepth}{4}
\setcounter{tocdepth}{2}

\renewcommand{\thefigure}{\arabic{chapter}.\arabic{figure}}
\renewcommand{\thetable}{\arabic{chapter}.\arabic{table}}


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