diff --git a/src/formatitko/tex/formatitko.tex b/src/formatitko/tex/formatitko.tex
index 9cd9eb3..3535a9b 100644
--- a/src/formatitko/tex/formatitko.tex
+++ b/src/formatitko/tex/formatitko.tex
@@ -22,6 +22,8 @@
 \pdfglyphtounicode{radicalbig}{221A}
 \pdfglyphtounicode{radicalBig}{221A}
 
+\input formatitkolib.tex
+
 
 \input minim-xmp.tex
 \startmetadata
@@ -38,8 +40,6 @@
 \pdfgentounicode=1
 
 
-
-
 %Create an OutputIntent in order to correctly specify colours
 \immediate\pdfobj stream attr{/N 3} file{sRGB.icc}
 \pdfcatalog{%
@@ -61,52 +61,6 @@
 \parskip=5pt plus 3pt minus 2pt
 \parindent=0sp
 
-\def\strong#1{{%
-\def\emph##1{{\bi{}##1}}%
-\bf{}#1%
-}}
-\def\emph#1{{%
-\def\strong##1{{\bi{}##1}}%
-\it{}#1%
-}}
-
-
-\def\superscript#1{$^{\hbox{#1}}$}
-\def\subscript#1{$_{\hbox{#1}}$}
-\newcount\fncount
-\fncount=1
-\def\fnmark{\superscript{\the\fncount}}
-\def\fn#1{\footnote\fnmark{#1}\advance\fncount by 1}
-\def\section#1#2{
-	\vfil\supereject\vbox{\settextsize{20}\bf #1\kern 1em\relax#2
-	\addtoc\tocsection{#1}{}{#2}
-	}\nobreak\vskip 12pt
-}
-\def\subsection#1#2{
-	\vskip 12pt\vbox{\settextsize{18}\bf #1\kern 1em\relax#2
-	\addtoc\tocsubsection{#1}{}{#2}
-	}\nobreak\vskip 7pt
-}
-\def\subsubsection#1#2{
-	\vskip 10pt\vbox{\settextsize{16}\bf #1\kern 1em\relax#2
-	\addtoc\tocsubsubsection{#1}{}{#2}
-	}\nobreak\vskip 6pt
-}
-\def\subsubsubsection#1#2{
-	\vskip 8pt\vbox{\settextsize{14}\bf #1\kern 1em\relax#2}\nobreak\vskip 5pt
-}
-\def\subsubsubsubsection#1#2{
-	\vskip 7pt\vbox{\settextsize{12}\bf #1\kern 1em\relax#2}\nobreak\vskip 5pt
-}
-\def\subsubsubsubsubsection#1#2{
-	\vskip 7pt\vbox{\settextsize{12}\bf #1\kern 1em\relax#2}\nobreak\vskip 5pt
-}
-\long\def\blockquote#1{\vskip\lineskip\vskip\parskip\hbox{\vrule\hskip5pt\vbox{#1}}}
-\def\strikeout#1{FIXME: Strikeout not implemented}
-\def\underline#1{FIXME: Underline not implemented}
-
-
-\def\mathbb#1{\hbox{\bb #1}}
 
 
 
@@ -119,7 +73,7 @@
 }
 
 % doporučen je horní, dolní a pravý okraj 25 mm, levý okraj 40 mm.
-% Protože doba tisknutí prací je už pryč, my máme tejně velkou stránku uprostřed papíru
+% Protože doba tisknutí prací je už pryč, my máme stejně velkou stránku uprostřed papíru
 \voffset 25mm
 
 \hoffset 32.5mm
@@ -143,20 +97,12 @@
 %\def\h{\it}		% hint
 %\def\bh{\bi}		% bold hint
 
-\def\N{{\bb N}}
-\def\R{{\bb R}}
-\def\E{{\bb E}}
-\def\O{{\cal O}}
-\def\SYM{{\rm SYM}}
-\def\frac#1#2{{{#1} \over {#2}}}
 
 \def\mod{\mathrel{\rm mod}}
 
 \settextsize{12}
 
 
-\def\unparskip{\vskip-\parskip}
-
 \def\floatinsert#1{\par{
 	\setbox0=\vbox{\boxmaxdepth=2pt\relax #1}
 	\dimen0=\dimexpr \ht0 + \dp0 + \baselineskip + \pagetotal - \pageshrink \relax
diff --git a/src/formatitko/tex/formatitkolib.tex b/src/formatitko/tex/formatitkolib.tex
new file mode 100644
index 0000000..c22ece0
--- /dev/null
+++ b/src/formatitko/tex/formatitkolib.tex
@@ -0,0 +1,56 @@
+\def\strong#1{{%
+\def\emph##1{{\bi{}##1}}%
+\bf{}#1%
+}}
+\def\emph#1{{%
+\def\strong##1{{\bi{}##1}}%
+\it{}#1%
+}}
+
+\def\N{{\bb N}}
+\def\R{{\bb R}}
+\def\E{{\bb E}}
+\def\O{{\cal O}}
+\def\SYM{{\rm SYM}}
+\def\frac#1#2{{{#1} \over {#2}}}
+
+\def\superscript#1{$^{\hbox{\settextsize{0.8\textsize}#1}}$}
+\def\subscript#1{$_{\hbox{\settextsize{0.8\textsize}#1}}$}
+\newcount\fncount
+\fncount=1
+\def\fnmark{$^{\the\fncount}$}
+\def\fn#1{\footnote\fnmark{#1}\advance\fncount by 1}
+\def\section#1#2{
+	\vfil\supereject
+	\vbox{\settextsize{20}\bf #1\kern 1em\relax#2%
+	\addtoc\tocsection{#1}{}{#2}%
+	}\nobreak\vskip 12pt
+}
+\def\subsection#1#2{
+	\vskip 12pt\vbox{\settextsize{18}\bf #1\kern 1em\relax#2%
+	\addtoc\tocsubsection{#1}{}{#2}%
+	}\nobreak\vskip 7pt
+}
+\def\subsubsection#1#2{
+	\vskip 10pt\vbox{\settextsize{16}\bf #1\kern 1em\relax#2%
+	\addtoc\tocsubsubsection{#1}{}{#2}%
+	}\nobreak\vskip 6pt
+}
+\def\subsubsubsection#1#2{
+	\vskip 8pt\vbox{\settextsize{14}\bf #1\kern 1em\relax#2}\nobreak\vskip 5pt
+}
+\def\subsubsubsubsection#1#2{
+	\vskip 7pt\vbox{\settextsize{12}\bf #1\kern 1em\relax#2}\nobreak\vskip 5pt
+}
+\def\subsubsubsubsubsection#1#2{
+	\vskip 7pt\vbox{\settextsize{12}\bf #1\kern 1em\relax#2}\nobreak\vskip 5pt
+}
+\long\def\blockquote#1{\vskip\lineskip\vskip\parskip\hbox{\vrule\hskip5pt\vbox{#1}}}
+\def\strikeout#1{FIXME: Strikeout not implemented}
+\def\underline#1{FIXME: Underline not implemented}
+
+
+\def\mathbb#1{\hbox{\bb #1}}
+
+\def\unparskip{\vskip-\parskip}
+