# \listoftheorems and its alternative with tcbtheorems not displaying,

i tried to to get a list of definitions (theorems) at the end of my document in the appednix. Unfortunality, the list is empty. I tried to use the description here but it does not work (for me). The "Definitionsverzeichnis", here marked with "List of Questions" should look like this: I do not find the mistake(s) and im searching for 4 hours no, so its a little bit frustrating.

Bevor using tcbtheorems I used mdtheorems, where it was no problem to get a list of theorems. However, now it wont work...

Perhaps someone could help me because tcbtheorems look really nice and i just want to keep them.

Here is my MWE:

\documentclass[ngerman,12pt, listof=totocnumbered, toc=bibliographynumbered,appendixprefix = on]{scrartcl} %scrartcl  article}

\usepackage[ngerman]{babel}

% preamble
\usepackage{tcolorbox}
\tcbuselibrary{theorems}
\tcbuselibrary{skins}
\usepackage{amsthm}
\usepackage{thmtools}
\usepackage{cleveref}
\usepackage{thmtools}
\usepackage[framemethod=tikz]{mdframed}

% definiton
\tcbset{
defstyle/.style={fonttitle=\bfseries\upshape,fontupper=\slshape,arc=0mm,colback=blue!5!white,colframe=blue!75!black},
theostyle/.style={fonttitle=\bfseries\upshape, fontupper=\slshape,colback=red!10!white,colframe=red!75!black},
}
\newtcbtheorem[number within=subsection,crefname={definition}{definitions}, list inside={qst}]{Definition}{defstyle}{def}{qst}
\newtcbtheorem[use counter from=Definition, crefname={theorem}{theorems}, list inside={qst}]{Theorem}{theostyle}{theo}{qst}
\newtcbtheorem[use counter from=Definition,crefname={corollary}{corollaries}]{Corollary}{Corollary}{theostyle}{cor}

\newtcbtheorem[use counter from=Definition]{definition}{Definition}{theorem style=plain,enhanced,colframe=blue!50!black,colback=yellow!20!white,coltitle=red!50!black,fonttitle=\upshape\bfseries,fontupper=\itshape,drop fuzzy shadow=blue!50!black!50!white,boxrule=0.4pt}{theo}

% theorem
\newtheorem{satz}{Satz}

\begin{document}
\section{hello}
\subsection{world}

\section{new section}
\subsection{new subsection for definitons}

% example definition
\begin{definition}{Hello}{labelHEY}%
\newline
a nice definition
\end{definition}

% example theorem
\begin{tcolorbox}[colback=gray!10!white,colframe=red!60!black,sharp corners=all ]
\begin{satz}
this is not a proof, just a theorem
\end{satz}
\end{tcolorbox}

% appendix,

\tcblistof[\section]{qst}{Definitionsverzeichnis}

\end{document}


This is how it looks like:

• You have defined "Definition" and "definition" and use the second one into your text, but this one doesn't have list inside={qst}. Therefore it's normal that it doesn't appear in list of theorems. – Ignasi Feb 27 at 16:45

Don't load lots of packages for the same thing. This only makes the code very confusing. Stick to one and then check the documentation so that you get the arguments right.

\documentclass[ngerman,12pt, listof=totocnumbered, toc=bibliographynumbered,appendixprefix = on]{scrartcl} %scrartcl  article}

\usepackage[ngerman]{babel}

% preamble
\usepackage{tcolorbox}
\tcbuselibrary{theorems}
\tcbuselibrary{skins}
\usepackage{cleveref}

% definiton
\tcbset{
defstyle/.style=
{fonttitle=\bfseries\upshape,fontupper=\slshape,arc=0mm,colback=blue!5!white,colframe=blue!75!black},
theostyle/.style=
{fonttitle=\bfseries\upshape, fontupper=\slshape,colback=red!10!white,colframe=red!75!black},
}
\newtcbtheorem[number within=subsection,
crefname={definition}{definitions},
list inside={qst}] %init
{definition} %name
{Definition} %display
{defstyle}   %options
{def}        %prefix
\newtcbtheorem[use counter from=definition, crefname={theorem}{theorems},
list inside={qst}]
{theorem}
{Theorem}
{theostyle}
{theo}

\begin{document}
\section{hello}
\subsection{world}

\section{new section}
\subsection{new subsection for definitons}

% example definition
\begin{definition}{Hello Definition}{labelHEY}%
a nice definition
\end{definition}

\begin{theorem}{Hello Theorem}{labelHEY}%
a nice theorem
\end{theorem}

\tcblistof[\section]{qst}{Definitionsverzeichnis}

\end{document}