diff -r e60333aa18ca -r aece5cc9efb7 src/Doc/Tutorial/document/root.tex
--- a/src/Doc/Tutorial/document/root.tex	Tue Apr 20 22:53:24 2021 +0200
+++ b/src/Doc/Tutorial/document/root.tex	Thu Apr 22 10:11:11 2021 +0200
@@ -3,7 +3,6 @@
 \usepackage{proof,amsmath,amsfonts,amssymb}
 \usepackage{wasysym,verbatim,graphicx,tutorial,ttbox,comment}
 \usepackage{eurosym}
-\usepackage[english]{babel}
 \usepackage{pdfsetup}   
 %last package!