diff -r e60333aa18ca -r aece5cc9efb7 src/Doc/Nitpick/document/root.tex
--- a/src/Doc/Nitpick/document/root.tex	Tue Apr 20 22:53:24 2021 +0200
+++ b/src/Doc/Nitpick/document/root.tex	Thu Apr 22 10:11:11 2021 +0200
@@ -2,7 +2,6 @@
 \usepackage[T1]{fontenc}
 \usepackage{amsmath}
 \usepackage{amssymb}
-\usepackage[english]{babel}
 \usepackage{color}
 \usepackage{footmisc}
 \usepackage{graphicx}
@@ -32,7 +31,7 @@
 \def\undef{(\lambda x.\; \_)}
 %\def\unr{\textit{others}}
 \def\unr{\ldots}
-\def\Abs#1{\hbox{\rm{\flqq}}{\,#1\,}\hbox{\rm{\frqq}}}
+\def\Abs#1{\hbox{\rm{\guillemetleft}}{\,#1\,}\hbox{\rm{\guillemetright}}}
 \def\Q{{\smash{\lower.2ex\hbox{$\scriptstyle?$}}}}
 
 \hyphenation{Mini-Sat size-change First-Steps grand-parent nit-pick