diff --git "a/notebooks/einf\303\274hrung_jn.ipynb" "b/notebooks/einf\303\274hrung_jn.ipynb"
index 1ce93f69c10532c808d15bffe45903aec63a6802..1ddade9fa602a7889b0501987848e85e1069ee36 100644
--- "a/notebooks/einf\303\274hrung_jn.ipynb"
+++ "b/notebooks/einf\303\274hrung_jn.ipynb"
@@ -2,9 +2,7 @@
  "cells": [
   {
    "cell_type": "markdown",
-   "metadata": {
-    "toc": true
-   },
+   "metadata": {},
    "source": [
     "<h1>Table of Contents<span class=\"tocSkip\"></span></h1>\n",
     "<div class=\"toc\"><ul class=\"toc-item\"><li><span><a href=\"#Jupyter-Notebook-Grundlagen\" data-toc-modified-id=\"Jupyter-Notebook-Grundlagen-1\"><span class=\"toc-item-num\">1&nbsp;&nbsp;</span>Jupyter Notebook Grundlagen</a></span><ul class=\"toc-item\"><li><span><a href=\"#Standardbrowser\" data-toc-modified-id=\"Standardbrowser-1.1\"><span class=\"toc-item-num\">1.1&nbsp;&nbsp;</span>Standardbrowser</a></span><ul class=\"toc-item\"><li><span><a href=\"#Anleitungen\" data-toc-modified-id=\"Anleitungen-1.1.1\"><span class=\"toc-item-num\">1.1.1&nbsp;&nbsp;</span>Anleitungen</a></span></li></ul></li><li><span><a href=\"#Shortcuts\" data-toc-modified-id=\"Shortcuts-1.2\"><span class=\"toc-item-num\">1.2&nbsp;&nbsp;</span>Shortcuts</a></span><ul class=\"toc-item\"><li><span><a href=\"#Beispiel:-Markdown-Zelle-vs.-Code-Zelle\" data-toc-modified-id=\"Beispiel:-Markdown-Zelle-vs.-Code-Zelle-1.2.1\"><span class=\"toc-item-num\">1.2.1&nbsp;&nbsp;</span>Beispiel: Markdown Zelle vs. Code Zelle</a></span></li></ul></li></ul></li><li><span><a href=\"#Python-Grundlagen\" data-toc-modified-id=\"Python-Grundlagen-2\"><span class=\"toc-item-num\">2&nbsp;&nbsp;</span>Python Grundlagen</a></span><ul class=\"toc-item\"><li><span><a href=\"#Grundlegende-Datentypen\" data-toc-modified-id=\"Grundlegende-Datentypen-2.1\"><span class=\"toc-item-num\">2.1&nbsp;&nbsp;</span>Grundlegende Datentypen</a></span></li><li><span><a href=\"#Listen\" data-toc-modified-id=\"Listen-2.2\"><span class=\"toc-item-num\">2.2&nbsp;&nbsp;</span>Listen</a></span></li><li><span><a href=\"#Mengen\" data-toc-modified-id=\"Mengen-2.3\"><span class=\"toc-item-num\">2.3&nbsp;&nbsp;</span>Mengen</a></span></li><li><span><a href=\"#Ranges\" data-toc-modified-id=\"Ranges-2.4\"><span class=\"toc-item-num\">2.4&nbsp;&nbsp;</span>Ranges</a></span></li><li><span><a href=\"#Tupel\" data-toc-modified-id=\"Tupel-2.5\"><span class=\"toc-item-num\">2.5&nbsp;&nbsp;</span>Tupel</a></span></li><li><span><a href=\"#Dictionaries\" data-toc-modified-id=\"Dictionaries-2.6\"><span class=\"toc-item-num\">2.6&nbsp;&nbsp;</span>Dictionaries</a></span></li><li><span><a href=\"#If-Anweisungen\" data-toc-modified-id=\"If-Anweisungen-2.7\"><span class=\"toc-item-num\">2.7&nbsp;&nbsp;</span>If-Anweisungen</a></span></li><li><span><a href=\"#Schleifen\" data-toc-modified-id=\"Schleifen-2.8\"><span class=\"toc-item-num\">2.8&nbsp;&nbsp;</span>Schleifen</a></span></li><li><span><a href=\"#Funktionen\" data-toc-modified-id=\"Funktionen-2.9\"><span class=\"toc-item-num\">2.9&nbsp;&nbsp;</span>Funktionen</a></span></li></ul></li><li><span><a href=\"#----------------Praktisch-für-Python,-aber-nicht-für-unseren-Kurs------------------\" data-toc-modified-id=\"----------------Praktisch-für-Python,-aber-nicht-für-unseren-Kurs-------------------3\"><span class=\"toc-item-num\">3&nbsp;&nbsp;</span><font color=\"red\">--------------- Praktisch für Python, aber nicht für unseren Kurs -----------------</font></a></span><ul class=\"toc-item\"><li><span><a href=\"#Lambda-Funktionen\" data-toc-modified-id=\"Lambda-Funktionen-3.1\"><span class=\"toc-item-num\">3.1&nbsp;&nbsp;</span>Lambda-Funktionen</a></span></li><li><span><a href=\"#List-Comprehensions\" data-toc-modified-id=\"List-Comprehensions-3.2\"><span class=\"toc-item-num\">3.2&nbsp;&nbsp;</span>List Comprehensions</a></span></li><li><span><a href=\"#Klassen\" data-toc-modified-id=\"Klassen-3.3\"><span class=\"toc-item-num\">3.3&nbsp;&nbsp;</span>Klassen</a></span></li></ul></li></ul></div>"
@@ -892,35 +890,9 @@
   }
  ],
  "metadata": {
-  "kernelspec": {
-   "display_name": "Python 3",
-   "language": "python",
-   "name": "python3"
-  },
   "language_info": {
-   "codemirror_mode": {
-    "name": "ipython",
-    "version": 3
-   },
-   "file_extension": ".py",
-   "mimetype": "text/x-python",
    "name": "python",
-   "nbconvert_exporter": "python",
-   "pygments_lexer": "ipython3",
-   "version": "3.7.6"
-  },
-  "toc": {
-   "base_numbering": 1,
-   "nav_menu": {},
-   "number_sections": true,
-   "sideBar": true,
-   "skip_h1_title": false,
-   "title_cell": "Table of Contents",
-   "title_sidebar": "Contents",
-   "toc_cell": true,
-   "toc_position": {},
-   "toc_section_display": true,
-   "toc_window_display": false
+   "pygments_lexer": "ipython3"
   }
  },
  "nbformat": 4,
diff --git a/notebooks/seminar00.ipynb b/notebooks/seminar00.ipynb
index 253f3862b0fb2d6b2be784318c1f3cd4d6f66153..e90d467d021a221eb9d23fb010278266330d65cd 100644
--- a/notebooks/seminar00.ipynb
+++ b/notebooks/seminar00.ipynb
@@ -15,9 +15,7 @@
   },
   {
    "cell_type": "markdown",
-   "metadata": {
-    "toc": true
-   },
+   "metadata": {},
    "source": [
     "<h1>Table of Contents<span class=\"tocSkip\"></span></h1>\n",
     "<div class=\"toc\"><ul class=\"toc-item\"><li><span><a href=\"#Lernziele-und-Ablauf-diese-Seminars\" data-toc-modified-id=\"Lernziele-und-Ablauf-diese-Seminars-1\"><span class=\"toc-item-num\">1&nbsp;&nbsp;</span>Lernziele und Ablauf diese Seminars</a></span></li><li><span><a href=\"#Tipps\" data-toc-modified-id=\"Tipps-2\"><span class=\"toc-item-num\">2&nbsp;&nbsp;</span>Tipps</a></span></li><li><span><a href=\"#Wiederkehrende-Abschnitte\" data-toc-modified-id=\"Wiederkehrende-Abschnitte-3\"><span class=\"toc-item-num\">3&nbsp;&nbsp;</span>Wiederkehrende Abschnitte</a></span></li><li><span><a href=\"#Hinweise-zur-Benutzung-von-Jupyter\" data-toc-modified-id=\"Hinweise-zur-Benutzung-von-Jupyter-4\"><span class=\"toc-item-num\">4&nbsp;&nbsp;</span>Hinweise zur Benutzung von Jupyter</a></span><ul class=\"toc-item\"><li><span><a href=\"#Jupyter-Notebook-Grundlagen-und-Informationen\" data-toc-modified-id=\"Jupyter-Notebook-Grundlagen-und-Informationen-4.1\"><span class=\"toc-item-num\">4.1&nbsp;&nbsp;</span>Jupyter Notebook Grundlagen und Informationen</a></span></li><li><span><a href=\"#Standardbrowser\" data-toc-modified-id=\"Standardbrowser-4.2\"><span class=\"toc-item-num\">4.2&nbsp;&nbsp;</span>Standardbrowser</a></span><ul class=\"toc-item\"><li><span><a href=\"#Anleitungen\" data-toc-modified-id=\"Anleitungen-4.2.1\"><span class=\"toc-item-num\">4.2.1&nbsp;&nbsp;</span>Anleitungen</a></span></li></ul></li><li><span><a href=\"#Shortcuts\" data-toc-modified-id=\"Shortcuts-4.3\"><span class=\"toc-item-num\">4.3&nbsp;&nbsp;</span>Shortcuts</a></span><ul class=\"toc-item\"><li><span><a href=\"#Beispiel:-Markdown-Zelle-vs.-Code-Zelle\" data-toc-modified-id=\"Beispiel:-Markdown-Zelle-vs.-Code-Zelle-4.3.1\"><span class=\"toc-item-num\">4.3.1&nbsp;&nbsp;</span>Beispiel: Markdown Zelle vs. Code Zelle</a></span></li></ul></li></ul></li><li><span><a href=\"#Exkurs:-Was-mir-an-Python-gefällt:\" data-toc-modified-id=\"Exkurs:-Was-mir-an-Python-gefällt:-5\"><span class=\"toc-item-num\">5&nbsp;&nbsp;</span>Exkurs: Was mir an Python gefällt:</a></span></li></ul></div>"
@@ -217,35 +215,9 @@
   }
  ],
  "metadata": {
-  "kernelspec": {
-   "display_name": "Python 3",
-   "language": "python",
-   "name": "python3"
-  },
   "language_info": {
-   "codemirror_mode": {
-    "name": "ipython",
-    "version": 3
-   },
-   "file_extension": ".py",
-   "mimetype": "text/x-python",
    "name": "python",
-   "nbconvert_exporter": "python",
-   "pygments_lexer": "ipython3",
-   "version": "3.7.6"
-  },
-  "toc": {
-   "base_numbering": 1,
-   "nav_menu": {},
-   "number_sections": true,
-   "sideBar": true,
-   "skip_h1_title": true,
-   "title_cell": "Table of Contents",
-   "title_sidebar": "Contents",
-   "toc_cell": true,
-   "toc_position": {},
-   "toc_section_display": true,
-   "toc_window_display": true
+   "pygments_lexer": "ipython3"
   }
  },
  "nbformat": 4,
diff --git a/notebooks/seminar01.ipynb b/notebooks/seminar01.ipynb
index 219affecd8a2e57ddcfc845dd7f3af5fd4e2b31d..ef271eeb7e58025fb30daa1b5eb9d4dbab839351 100644
--- a/notebooks/seminar01.ipynb
+++ b/notebooks/seminar01.ipynb
@@ -12,9 +12,7 @@
   },
   {
    "cell_type": "markdown",
-   "metadata": {
-    "toc": true
-   },
+   "metadata": {},
    "source": [
     "<h1>Table of Contents<span class=\"tocSkip\"></span></h1>\n",
     "<div class=\"toc\"><ul class=\"toc-item\"><li><span><a href=\"#Ihre-Lernziele:\" data-toc-modified-id=\"Ihre-Lernziele:-1\"><span class=\"toc-item-num\">1&nbsp;&nbsp;</span>Ihre Lernziele:</a></span></li><li><span><a href=\"#Exkurs:-Was-mir-an-Python-gefällt:\" data-toc-modified-id=\"Exkurs:-Was-mir-an-Python-gefällt:-2\"><span class=\"toc-item-num\">2&nbsp;&nbsp;</span>Exkurs: Was mir an Python gefällt:</a></span></li><li><span><a href=\"#Programme\" data-toc-modified-id=\"Programme-3\"><span class=\"toc-item-num\">3&nbsp;&nbsp;</span>Programme</a></span><ul class=\"toc-item\"><li><span><a href=\"#Eine-erste-Anweisung\" data-toc-modified-id=\"Eine-erste-Anweisung-3.1\"><span class=\"toc-item-num\">3.1&nbsp;&nbsp;</span>Eine erste Anweisung</a></span></li><li><span><a href=\"#Python-Programme-starten\" data-toc-modified-id=\"Python-Programme-starten-3.2\"><span class=\"toc-item-num\">3.2&nbsp;&nbsp;</span>Python-Programme starten</a></span></li><li><span><a href=\"#Arithmetik\" data-toc-modified-id=\"Arithmetik-3.3\"><span class=\"toc-item-num\">3.3&nbsp;&nbsp;</span>Arithmetik</a></span></li></ul></li><li><span><a href=\"#Werte-und-Datentypen\" data-toc-modified-id=\"Werte-und-Datentypen-4\"><span class=\"toc-item-num\">4&nbsp;&nbsp;</span>Werte und Datentypen</a></span></li><li><span><a href=\"#Formale-und-natürliche-Sprachen\" data-toc-modified-id=\"Formale-und-natürliche-Sprachen-5\"><span class=\"toc-item-num\">5&nbsp;&nbsp;</span>Formale und natürliche Sprachen</a></span></li><li><span><a href=\"#Exkurs:-Programmierer\" data-toc-modified-id=\"Exkurs:-Programmierer-6\"><span class=\"toc-item-num\">6&nbsp;&nbsp;</span>Exkurs: Programmierer</a></span></li><li><span><a href=\"#Debugging\" data-toc-modified-id=\"Debugging-7\"><span class=\"toc-item-num\">7&nbsp;&nbsp;</span>Debugging</a></span></li><li><span><a href=\"#Glossar\" data-toc-modified-id=\"Glossar-8\"><span class=\"toc-item-num\">8&nbsp;&nbsp;</span>Glossar</a></span></li><li><span><a href=\"#Übung\" data-toc-modified-id=\"Übung-9\"><span class=\"toc-item-num\">9&nbsp;&nbsp;</span>Übung</a></span><ul class=\"toc-item\"><li><span><a href=\"#Aufgabe-1\" data-toc-modified-id=\"Aufgabe-1-9.1\"><span class=\"toc-item-num\">9.1&nbsp;&nbsp;</span>Aufgabe 1</a></span></li><li><span><a href=\"#Aufgabe-2\" data-toc-modified-id=\"Aufgabe-2-9.2\"><span class=\"toc-item-num\">9.2&nbsp;&nbsp;</span>Aufgabe 2</a></span></li></ul></li></ul></div>"
@@ -548,40 +546,9 @@
   }
  ],
  "metadata": {
-  "kernelspec": {
-   "display_name": "Python 3",
-   "language": "python",
-   "name": "python3"
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-    "name": "ipython",
-    "version": 3
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-   "file_extension": ".py",
-   "mimetype": "text/x-python",
    "name": "python",
-   "nbconvert_exporter": "python",
-   "pygments_lexer": "ipython3",
-   "version": "3.7.6"
-  },
-  "toc": {
-   "base_numbering": 1,
-   "nav_menu": {},
-   "number_sections": true,
-   "sideBar": true,
-   "skip_h1_title": true,
-   "title_cell": "Table of Contents",
-   "title_sidebar": "Contents",
-   "toc_cell": true,
-   "toc_position": {
-    "height": "479.259px",
-    "left": "302px",
-    "top": "223.926px",
-    "width": "281.331px"
-   },
-   "toc_section_display": true,
-   "toc_window_display": true
+   "pygments_lexer": "ipython3"
   }
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  "nbformat": 4,