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diff --git a/is/ub7/is7.tex b/is/ub7/is7.tex
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+\documentclass[a4paper,12pt]{scrartcl}
+\usepackage[ngerman]{babel}
+\usepackage{graphicx} %BIlder einbinden
+\usepackage{amsmath} %erweiterte Mathe-Zeichen
+\usepackage{amsfonts} %weitere fonts
+\usepackage[utf8]{inputenc} %Umlaute & Co
+\usepackage{hyperref} %Links
+\usepackage{ifthen} %ifthenelse
+\usepackage{enumerate}
+\usepackage{listings}
+\lstset{language=Python}
+
+\usepackage{algpseudocode} %Pseudocode
+\usepackage{dsfont} % schöne Zahlenräumezeichen
+\usepackage{amssymb, amsthm} %noch stärker erweiterte Mathe-Zeichen
+\usepackage{tikz} %TikZ ist kein Zeichenprogramm
+\usetikzlibrary{trees,automata,arrows,shapes}
+
+\pagestyle{empty}
+
+
+\topmargin-50pt
+
+\newcounter{aufgabe}
+\def\tand{&}
+
+\newcommand{\makeTableLine}[2][0]{%
+  \setcounter{aufgabe}{1}%
+  \whiledo{\value{aufgabe} < #1}%
+  {%
+    #2\tand\stepcounter{aufgabe}%
+  }
+}
+
+\newcommand{\aufgTable}[1]{
+  \def\spalten{\numexpr #1 + 1 \relax}
+  \begin{tabular}{|*{\spalten}{p{1cm}|}}
+    \makeTableLine[\spalten]{A\theaufgabe}$\Sigma$~~\\ \hline
+    \rule{0pt}{15pt}\makeTableLine[\spalten]{}\\
+  \end{tabular}
+}
+
+\def\header#1#2#3#4#5#6#7{\pagestyle{empty}
+\begin{minipage}[t]{0.47\textwidth}
+\begin{flushleft}
+{\bf #4}\\
+#5
+\end{flushleft}
+\end{minipage}
+\begin{minipage}[t]{0.5\textwidth}
+\begin{flushright}
+#6 \vspace{0.5cm}\\
+%                 Number of Columns    Definition of Columns      second empty line
+% \begin{tabular}{|*{5}{C{1cm}|}}\hline A1&A2&A3&A4&$\Sigma$\\\hline&&&&\\\hline\end{tabular}\\\vspace*{0.1cm}
+\aufgTable{#7}
+\end{flushright}
+\end{minipage}
+\vspace{1cm}
+\begin{center}
+{\Large\bf Sheet #1}
+
+{(Hand in #3)}
+\end{center}
+}
+
+
+
+%counts the exercisenumber
+\newcounter{n}
+
+%Kommando für Aufgaben
+%\Aufgabe{AufgTitel}{Punktezahl}
+\newcommand{\Aufgabe}[2]{\stepcounter{n}
+    \textbf{Exercise \arabic{n}: #1} (#2 Points)\\}
+
+
+
+
+\begin{document}
+    %\header{BlattNr}{Tutor}{Abgabedatum}{Vorlesungsname}{Namen}{Semester}{Anzahl Aufgaben}
+    \header{7}{}{2015-06-25}{Intelligent Systems I}{\textit{Maximus Mutschler}\\ \textit{Jan-Peter Hohloch}
+    }{SS 15}{2}
+    \vspace{1cm}
+    \Aufgabe{SEM}{40}
+        \begin{enumerate}[(a)]
+            \item \begin{tikzpicture}[->, node distance=2cm]
+                \node[circle, draw] (V) {V};
+                \node[circle, draw] (X) [below of=V] {X};
+                \node[circle, draw] (Y) [right of=X] {Y};
+                \node[circle, draw] (Z) [below of=X] {Z};
+                \node[circle, draw] (W) [right of=Y] {W};
+
+                \draw (V) -- (X);
+                \draw (X) -- (Y);
+                \draw (X) -- (Z);
+                \draw (V) -- (W);
+                \draw (Y) -- (W);
+                \draw (Z) -- (W);
+            \end{tikzpicture}
+            \item %TODO
+        \end{enumerate}
+    \Aufgabe{Causal effects}{60}
+        \begin{enumerate}[(a)]
+            \item TODO%TODO plot
+            \item Setting $\alpha$ to $0$ makes Z independent of X.\\
+                Z is just random noise ($N_z$), so it is independent of X\qed
+            \item %TODO
+        \end{enumerate}
+\end{document}
+