# Why using itemize cannot bold in third line with $$H_{1,1}$$ [duplicate]

I am trying to bold the word in my third line. as shown in figure below:

My full MWE is as below:

    \documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage{amssymb}

\begin{document}

\renewcommand{\labelitemi}{$\blacksquare$}
\renewcommand{\labelitemii}{$\square$}
\renewcommand{\labelitemiii}{\textendash}
\begin{itemize}
\item  \textbf{First Line}
\begin{itemize}
\item  \textbf{Second Line}
\begin{itemize}
\item \textbf{$$H_{1,1}$$:} No bold starting here Third Line
%  \item {\textbf{$$H_{1,2}$$:}} There

\end{itemize}
\end{itemize}
\end{itemize}

\end{document}


 \item \textbf{$$H_{1,1}$$:} No bold starting here Third Line


and

\item {\textbf{$$H_{1,2}$$:}} There

• How can I get bold math symbols? might be interesting. – leandriis Dec 25 '19 at 14:26
• I have edited the tags, especially to remove biblatex since this tag is not related to the question. I have added symbols and math-mode instead. – leandriis Dec 25 '19 at 14:28
• Thanks for having provided a MWE. A bit more experimentation shows you can make the example even smaller. – Arnaud Dec 25 '19 at 14:30
• Actual minimal WE: \documentclass{article} \begin{document} \textbf{$$H_{1,2}$$:} \end{document} since the problem is not related to itemize. (As also stated by Arnaud). – leandriis Dec 25 '19 at 14:31
• @CampanIgnis : what new question are you referring to? – Arnaud Dec 25 '19 at 14:49
• @Arnoud that was an automatic comment made by the system (note the From Review link) that was generated because the reviewer (CampanIgnis) clicked the 'in my opinion this is a different question posted as an answer' option. He may have thought that you wanted to ask a new question, i.e., "how can I use \textbf to write bold math?" or something similar. That was probably a review mistake, in my opinion this is an (accurate) answer to the question, although a bit short. – Marijn Dec 25 '19 at 16:23
• @Arnaud. See Marijn comment. Marion is correct. – CampanIgnis Dec 25 '19 at 21:55