diff --git a/document-tikz.tex b/document-tikz.tex
deleted file mode 100644
index 974c57d..0000000
--- a/document-tikz.tex
+++ /dev/null
@@ -1,57 +0,0 @@
-\documentclass{report}
-\usepackage{amssymb, amsmath, hyperref}
-\usepackage{tikz}
-\usepackage{tikz-cd}
-
-\theoremstyle{plain}
-\newtheorem{theorem}[subsection]{Theorem}
-\newtheorem{proposition}[subsection]{Proposition}
-\newtheorem{lemma}[subsection]{Lemma}
-
-\theoremstyle{definition}
-\newtheorem{definition}[subsection]{Definition}
-\newtheorem{example}[subsection]{Example}
-\newtheorem{exercise}[subsection]{Exercise}
-\newtheorem{situation}[subsection]{Situation}
-
-\theoremstyle{remark}
-\newtheorem{remark}[subsection]{Remark}
-\newtheorem{remarks}[subsection]{Remarks}
-
-\numberwithin{equation}{subsection}
-
-\begin{document}
-
-\chapter{A first chapter}
-\label{chapter:first}
-
-\section{A first section}
-\label{section:first}
-
-\begin{lemma}
-  \label{lemma:pythagoras}
-  $a^2=b^2+c^2$
-\end{lemma}
-
-\begin{tikzpicture}
-  \draw (0,0) --(1,2);
-\end{tikzpicture}
-
-\begin{tikzcd}
-  a \arrow[r] & b
-\end{tikzcd}
-
-\section{A second section}
-\label{section:second}
-
-
-\chapter{A second chapter}
-\label{chapter:second}
-
-\section{A third section}
-\label{section:third}
-
-\section{A fourth section}
-\label{section:fourth}
-
-\end{document}