\documentclass[12pt,a4paper,violet]{bbe}
\usepackage[french]{babel}
\usepackage[autolanguage]{numprint}
\usepackage{lipsum}
\usepackage{blindtext}
\begin{document}
%\tableofcontents
\chapter{Titre chapitre 1}
\section{Titre section 1}
\subsection{Titre sous-section 1}
\subsubsection{Tiitre 1}
\begin{definition}
  \lipsum[1][1-2]
\end{definition}
\begin{activity}
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\end{activity}
\begin{remark}
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\end{remark}
\begin{exercise}
\lipsum[1][1-2]
\end{exercise}
\begin{property}
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\end{property}

\begin{solution}
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\end{solution}
\begin{example}
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\end{example}
\begin{theorem}
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\end{theorem}
\blinddocument
\end{document}