1 files changed, 9 insertions, 1 deletions
diff --git a/commands.tex b/commands.tex
index 177fd67..0828066 100644
--- a/commands.tex
+++ b/commands.tex
@@ -1,3 +1,11 @@
+\newtheorem{Satz}{Satz}[section]
+\newtheorem{Lemma}[Satz]{Lemma}
+
+\theoremstyle{definition}
+\newtheorem{Definition}{Definition}[section]
+
+\numberwithin{equation}{section}
+
 \newcommand{\R}{\mathbb{R}} % reelle
 \newcommand{\Z}{\mathbb{Z}} % ganze
 \newcommand{\N}{\mathbb{N}} % natuerliche
@@ -11,4 +19,4 @@
 \newcommand\numberthis{\addtocounter{equation}{1}\tag{\theequation}}
 
 \newcommand{\V}[2]{\ensuremath{\begin{pmatrix}#1\\#2\end{pmatrix}}}
-\newenvironment{rcases}{\left.\begin{aligned}}{\end{aligned}\right\rbrace}
-\ No newline at end of file
+\newenvironment{rcases}{\left.\begin{aligned}}{\end{aligned}\right\rbrace}