I want to be able to put my subsubsections in bold - currently they are displayed in italics by default.
What I have:
1. Section
1.1 Subsection
1.1.1 Subsubsection
What I want:
1. Section
1.1 Subsection
1.1.1 Subsubsection
The top of my Latex document currently looks like:
\documentclass[12pt, onecolumn]{revtex4}
\usepackage{times}
\usepackage[a4paper, left=2.5cm, right=2.5cm,
top=2.5cm, bottom=2.5cm]{geometry}
\renewcommand{\baselinestretch}{1.15}
\usepackage[font=small,labelfont=bf]{caption}
\usepackage{graphics,graphicx,epsfig,ulem}
\usepackage{amsmath}
\usepackage{etoolbox}
\makeatletter
\patchcmd{\frontmatter@RRAP@format}{(}{}{}{}
\patchcmd{\frontmatter@RRAP@format}{)}{}{}{}
\renewcommand\Dated@name{}
\makeatother
\usepackage{fancyhdr}
\usepackage{siunitx}
\usepackage{hyperref}
\usepackage{footmisc}
\usepackage{float}
\pagestyle{fancy}
\renewcommand{\headrulewidth}{0pt}
\rhead{Insert Title Here}
\def\thetable{\arabic{table}}
\def\thesection{\arabic{section}}
\def\thesubsection{\arabic{section}.\arabic{subsection}}
\def\thesubsubsection{\arabic{section}.\arabic{subsection}.\arabic{subsubsection}}
\def\bibsection{\section*{References}}
\begin{document}
\end{documnet}
sectsty,titlesec, etc. – Apr 06 '19 at 16:02revtex4document class for a good reason, e.g., because you're planning to submit a paper to a journal which requires authors to employ therevtex4class. If that's the case, it's probably a poor idea to modify the appearance of subsubsection-level headers. For one, it'll immediately earn you the enmity of the journal's editorial staff, and the editors may decide to reject the paper solely based on its failure to conform torevtex4formatting conventions. – Mico Apr 06 '19 at 16:33graphicsandgraphicx. And, almost certainly no need to loadepsfig. – Mico Apr 06 '19 at 16:47sectstypackage is incompatible with therevtex4document class. – Mico Apr 06 '19 at 16:56titlesec. That is the reason of closure. – Apr 06 '19 at 16:59titlesecis not the best option, and the other answers do not answer the question. – Sveinung Apr 06 '19 at 17:02