diff --git a/lib/doc/Math.lyx b/lib/doc/Math.lyx
index 14f2ee9c3c..e9f6d09d49 100644
--- a/lib/doc/Math.lyx
+++ b/lib/doc/Math.lyx
@@ -39,7 +39,6 @@
 \DeclareInputText{183}{\ifmmode\cdot\else\textperiodcentered\fi}
 
 % increase link area for cross-references and autoname them,
-% see sec. 22.18.1
 \AtBeginDocument{\renewcommand{\ref}[1]{\mbox{\autoref{#1}}}}
 %\renewcommand{\sectionautorefname}{sec.\negthinspace}
 \renewcommand{\subsectionautorefname}{sec.\negthinspace}
@@ -64,7 +63,6 @@
  \pagenumbering{arabic}}
 
 % insert additional vertical space of 1.5 mm between footnotes,
-% see sec. 22.16
 \let\myFoot\footnote
 \renewcommand{\footnote}[1]{\myFoot{#1\vspace{1.5mm}}}
 
@@ -121,6 +119,10 @@
 \renewenvironment{lyxgreyedout}
  {\textcolor{blue}\bgroup}{\egroup}
 
+% ------------------------------------
+% used to check for needed LaTeX packages
+\usepackage{ifthen}
+
 % check for package eurosym
 % used for the Euro symbol
 \newboolean{eurosym}
@@ -627,42 +629,7 @@ The TeX-mode
 status collapsed
 
 \begin_layout Plain Layout
-T@
-\begin_inset ERT
-status collapsed
-
-\begin_layout Plain Layout
-
-
-\backslash
-
-\begin_inset ERT
-status collapsed
-
-\begin_layout Plain Layout
-
-{
-\end_layout
-
-\end_inset
-
-
-\begin_inset ERT
-status collapsed
-
-\begin_layout Plain Layout
-
-}
-\end_layout
-
-\end_inset
-
-
-\end_layout
-
-\end_inset
-
-TeX-mode
+T@TeX-mode
 \end_layout
 
 \end_inset
diff --git a/lib/doc/de/Math.lyx b/lib/doc/de/Math.lyx
index 0773b37fed..f7279063ae 100644
--- a/lib/doc/de/Math.lyx
+++ b/lib/doc/de/Math.lyx
@@ -39,7 +39,6 @@
 \DeclareInputText{183}{\ifmmode\cdot\else\textperiodcentered\fi}
 
 % Linkfläche für Querverweise vergrößern und automatisch benennen,
-% siehe Kap. 22.18.1
 \AtBeginDocument{\renewcommand{\ref}[1]{\mbox{\autoref{#1}}}}
 \renewcommand{\sectionautorefname}{Kap.\negthinspace}
 \renewcommand{\subsectionautorefname}{Kap.\negthinspace}
@@ -64,7 +63,6 @@
  \pagenumbering{arabic}}
 
 % Damit die Fußnoten einen zusätzlichen vertikalen Abstand von 1,5 mm haben,
-% siehe Kap. 22.16
 \let\myFoot\footnote
 \renewcommand{\footnote}[1]{\myFoot{#1\vspace{1.5mm}}}
 
@@ -126,6 +124,10 @@
 {\renewcommand{\indexname}
 {Stichwort- und Befehlsverzeichnis}}
 
+% ------------------------------------
+% used to check for needed LaTeX packages
+\usepackage{ifthen}
+
 % testen ob das Paket eurosym installiert ist
 % wird benutzt für das Euro-Symbol
 \newboolean{eurosym}
@@ -628,42 +630,7 @@ In den TeX-Modus
 status collapsed
 
 \begin_layout Plain Layout
-T@
-\begin_inset ERT
-status collapsed
-
-\begin_layout Plain Layout
-
-
-\backslash
-
-\begin_inset ERT
-status collapsed
-
-\begin_layout Plain Layout
-
-{
-\end_layout
-
-\end_inset
-
-
-\begin_inset ERT
-status collapsed
-
-\begin_layout Plain Layout
-
-}
-\end_layout
-
-\end_inset
-
-
-\end_layout
-
-\end_inset
-
-TeX-Modus
+T@TeX-Modus
 \end_layout
 
 \end_inset
diff --git a/lib/doc/es/Math.lyx b/lib/doc/es/Math.lyx
index d00e0d7bce..69a245c63b 100644
--- a/lib/doc/es/Math.lyx
+++ b/lib/doc/es/Math.lyx
@@ -39,7 +39,6 @@
 \DeclareInputText{183}{\ifmmode\cdot\else\textperiodcentered\fi}
 
 % increase link area for cross-references and autoname them,
-% see sec. 22.18.1
 \AtBeginDocument{\renewcommand{\ref}[1]{\mbox{\autoref{#1}}}}
 %\renewcommand{\sectionautorefname}{sec.\negthinspace}
 \renewcommand{\subsectionautorefname}{sec.\negthinspace}
@@ -64,7 +63,6 @@
  \pagenumbering{arabic}}
 
 % insert additional vertical space of 1.5 mm between footnotes,
-% see sec. 22.16
 \let\myFoot\footnote
 \renewcommand{\footnote}[1]{\myFoot{#1\vspace{1.5mm}}}
 
@@ -121,6 +119,10 @@
 \renewenvironment{lyxgreyedout}
  {\textcolor{blue}\bgroup}{\egroup}
 
+% ------------------------------------
+% used to check for needed LaTeX packages
+\usepackage{ifthen}
+
 % check for package eurosym
 % used for the Euro symbol
 \newboolean{eurosym}
@@ -264,7 +266,7 @@ LatexCommand tableofcontents
 
 \begin_layout Standard
 \begin_inset Note Note
-status collapsed
+status open
 
 \begin_layout Plain Layout
 Para exportar este documento a PDF, PS, o DVI deben estar instalados los
diff --git a/lib/doc/fr/Math.lyx b/lib/doc/fr/Math.lyx
index 596fe7e18c..aff68e611e 100644
--- a/lib/doc/fr/Math.lyx
+++ b/lib/doc/fr/Math.lyx
@@ -39,7 +39,6 @@
 \DeclareInputText{183}{\ifmmode\cdot\else\textperiodcentered\fi}
 
 % increase link area for cross-references and autoname them,
-% see sec. 22.18.1
 \AtBeginDocument{\renewcommand{\ref}[1]{\mbox{\autoref{#1}}}}
 %\renewcommand{\sectionautorefname}{sec.\negthinspace}
 \renewcommand{\subsectionautorefname}{sec.\negthinspace}
@@ -64,7 +63,6 @@
  \pagenumbering{arabic}}
 
 % insert additional vertical space of 1.5 mm between footnotes,
-% see sec. 22.16
 \let\myFoot\footnote
 \renewcommand{\footnote}[1]{\myFoot{#1\vspace{1.5mm}}}
 
@@ -121,6 +119,10 @@
 \renewenvironment{lyxgreyedout}
  {\textcolor{blue}\bgroup}{\egroup}
 
+% ------------------------------------
+% used to check for needed LaTeX packages
+\usepackage{ifthen}
+
 % check for package eurosym
 % used for the Euro symbol
 \newboolean{eurosym}