\documentclass[english]{amsbook}
\usepackage[T1]{fontenc}
\usepackage[latin1]{inputenc}
\usepackage{graphicx}
\usepackage{url}
\providecommand{\LyX}{L\kern-.1667em\lower.25em\hbox{Y}\kern-.125emX\@}
\newtheorem{thm}{Theorem}[section]
\newtheorem{xca*}{Exercice}
\newcommand{\N}{\mathbb{N}}
\newcommand{\Z}{\mathbb{Z}}
\newcommand{\Q}{\mathbb{Q}}
\newcommand{\R}{\mathbb{R}}
\newcommand{\C}{\mathbb{C}}
\usepackage{hyperref}
\usepackage[english,francais]{babel}
\def\url#1{{\selectlanguage{english}\hyper@normalise\url@{#1}}}
\def\href#1#2{{\selectlanguage{english}\hyper@normalise\href@{#1}{#2}}}
\newcommand{\solution}{ \vspace{2cm}}
\usepackage[english,francais]{babel}
\pagestyle{empty}
\begin{document}
\includegraphics{arbre_syntaxique}
\clearpage% page: 0
\end{document}
