# Memoir class — Displayed heading for subsubsection

I am trying to make a subsection heading with the memoir class. The problem is the following:

I want to have a displayed heading for my subsubsection. The text should begin right after the subsubsec heading as a new line, and NOT as a new paragraph.

Memoir sets as a vertikal space after the headings the lenghts afterskip + \parskip(of heading font) + \baselineskip(of text font). To solve the problem, it would be plausible to set afterskip to -parskip. But, if afterskip becomes a negative value, the heading will turn into a run-in style.

I made my tests with the following minimal example:

\documentclass[11pt]{memoir}
\parskip9pt
\parindent0pt

\setcounter{secnumdepth}{2}
\setbeforesubsubsecskip{9pt}
\setaftersubsubsecskip{1pt}

\begin{document}

\subsubsection{lorem ipsum}
lorem ipsum

lorem ipsum
\end{document}


I used before the titlesec package, and it was excelent, till I not tried to use \titleref... This \titleref doesn't work with this package only for the chapters. If I dont't use titlesec, the references for sections working also good.

-

Here is a temp fix

\makeatletter
\renewcommand{\@startsection}[6]{%
\@nameuse{#1block}%
\ifraggedbottomsection\if@nobreak\else
\vskip\z@\@plus\bottomsectionskip
\penalty\z@
\vskip\z@\@plus -\bottomsectionskip
\fi\fi
\def\m@msecn@me{#1}%
\if@noskipsec \leavevmode \fi
\par
\@tempskipa #4\relax
\@afterindenttrue
\ifdim \@tempskipa <\z@
\@tempskipa -\@tempskipa \@afterindentfalse
\fi
\if@nobreak
\everypar{}%
\else
\fi
\@ifstar
{\@ssect{#3}{#4}{#5}{#6}}%
{\@trplargoom{\M@sect{#1}{#2}{#3}{#4}{#5}{#6}}}}

\def\@xsect#1{%
\@tempskipa #1\relax
\ifdim \@tempskipa>\z@
\par
\nobreak
\vskip \@tempskipa
\else
\@nobreakfalse
\global\@noskipsectrue
\everypar{%
\if@noskipsec
\global\@noskipsecfalse
{\setbox\z@\lastbox}%
\clubpenalty\@M
\begingroup \@svsechd \endgroup
\unskip
\@tempskipa #1\relax
\hskip -\@tempskipa
\else
\clubpenalty \@clubpenalty
\everypar{}%
\fi}%
\fi
\ignorespaces}
\makeatother

-