preambulo_book.tex

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\usepackage[a4paper,headheight=15.4pt]{geometry}

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% ATENÇÃO
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% POR SEGURANÇA, NÃO EDITE ESTE ARQUIVO.
%
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%  ambientes 
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  \theoremstyle{plain}          %   bold title, italic body
  \newtheorem{teo}{Teorema}[section]
  \newtheorem{lem}{Lema}[section]
  \newtheorem{prop}{Proposição}[section]
  \newtheorem{corol}{Corolário}[section]
  \newtheorem{defn}{Definição}[section]
  \theoremstyle{remark}           % italic title, romman body
  \theoremstyle{definition}       % italic title, romman body
  \newtheorem{obs}{Observação}[section]
  \newtheorem{ex}{Exemplo}[section]

%%%% titlepage figure %%%%
\usepackage{eso-pic}
\newcommand\BackgroundPic{%
\put(0,0){%
\parbox[b][\paperheight]{\paperwidth}{%
\vfill
\centering
\includegraphics[width=\paperwidth,height=\paperheight,%
keepaspectratio]{./rosto/capa.eps}%
\vfill
}}}

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%%%% Exercises and Answers %%%%
\usepackage[answerdelayed,lastexercise]{exercise}
\usepackage{chngcntr}
\counterwithin{Exercise}{section}
\counterwithin{Answer}{section}
\renewcommand{\ExerciseHeaderTitle}{({\it \ExerciseTitle})}
\renewcommand{\ExerciseName}{E}
\renewcommand{\ExerciseHeader}{{\textbf{\large\ExerciseName~\ExerciseHeaderNB\ExerciseHeaderTitle\ExerciseHeaderOrigin}}}
\renewcommand{\ExerciseHeader}{\textbf{\ExerciseName\ \ExerciseHeaderNB.}\,}

% change font for answers header
\renewcommand{\AnswerHeader}{\tiny\textbf{\ExerciseName\ \ExerciseHeaderNB.}\smallskip}
% change font for answers list header
\renewcommand{\AnswerListHeader}{{\tiny\textbf{\AnswerListName\
(\ExerciseListName\ \ExerciseHeaderNB)\ ---\ }}}
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