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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <!-- Created by GNU Texinfo 6.8, https://www.gnu.org/software/texinfo/ --> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <!-- This manual is for GNU Texinfo (version 6.8, 8 June 2021), a documentation system that can produce both online information and a printed manual from a single source using semantic markup. Copyright (C) 1988, 1990-1993, 1995-1999, 2001-2021 Free Software Foundation, Inc. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, with no Front-Cover Texts, and with no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation License". --> <title>@subsubsection (GNU Texinfo 6.8)</title> <meta name="description" content="@subsubsection (GNU Texinfo 6.8)"> <meta name="keywords" content="@subsubsection (GNU Texinfo 6.8)"> <meta name="resource-type" content="document"> <meta name="distribution" content="global"> <meta name="Generator" content="texi2any"> <meta name="viewport" content="width=device-width,initial-scale=1"> <link href="index.html" rel="start" title="Top"> <link href="Command-and-Variable-Index.html" rel="index" title="Command and Variable Index"> <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents"> <link href="Chapter-Structuring.html" rel="up" title="Chapter Structuring"> <link href="_0040part.html" rel="next" title="@part"> <link href="_0040unnumberedsubsec-_0040appendixsubsec-_0040subheading.html" rel="prev" title="@unnumberedsubsec @appendixsubsec @subheading"> <style type="text/css"> <!-- a.copiable-anchor {visibility: hidden; text-decoration: none; line-height: 0em} a.summary-letter {text-decoration: none} blockquote.indentedblock {margin-right: 0em} div.display {margin-left: 3.2em} div.example {margin-left: 3.2em} kbd {font-style: oblique} pre.display {font-family: inherit} pre.format {font-family: inherit} pre.menu-comment {font-family: serif} pre.menu-preformatted {font-family: serif} span.nolinebreak {white-space: nowrap} span.roman {font-family: initial; font-weight: normal} span.sansserif {font-family: sans-serif; font-weight: normal} span:hover a.copiable-anchor {visibility: visible} ul.no-bullet {list-style: none} --> </style> </head> <body lang="en"> <div class="section" id="g_t_0040subsubsection"> <div class="header"> <p> Next: <a href="_0040part.html" accesskey="n" rel="next"><code>@part</code>: Groups of Chapters</a>, Previous: <a href="_0040unnumberedsubsec-_0040appendixsubsec-_0040subheading.html" accesskey="p" rel="prev">The <code>@subsection</code>-like Commands</a>, Up: <a href="Chapter-Structuring.html" accesskey="u" rel="up">Chapter Structuring</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Command-and-Variable-Index.html" title="Index" rel="index">Index</a>]</p> </div> <hr> <span id="g_t_0040subsection-and-Other-Subsub-Commands"></span><h3 class="section">4.10 <code>@subsection</code> and Other Subsub Commands</h3> <span id="subsubsection"></span><span id="index-subsubsection"></span> <span id="index-unnumberedsubsubsec"></span> <span id="index-appendixsubsubsec"></span> <span id="index-subsubheading"></span> <span id="index-Subsub-sectioning-commands"></span> <p>The fourth and lowest level sectioning commands in Texinfo are the ‘subsub’ commands. They are: </p> <dl compact="compact"> <dt><span><code>@subsubsection</code></span></dt> <dd><p>Subsubsections are to subsections as subsections are to sections. (See <a href="_0040subsection.html"><code>@subsection</code>: Subsections Below Sections</a>.) Subsubsection titles appear in the table of contents. </p> </dd> <dt><span><code>@unnumberedsubsubsec</code></span></dt> <dd><p>Unnumbered subsubsection titles appear in the table of contents, but lack numbers. Otherwise, unnumbered subsubsections are the same as subsubsections. </p> </dd> <dt><span><code>@appendixsubsubsec</code></span></dt> <dd><p>Conventionally, appendix commands are used only for appendices and are lettered and numbered appropriately. They also appear in the table of contents. </p> </dd> <dt><span><code>@subsubheading</code></span></dt> <dd><p>The <code>@subsubheading</code> command may be used anywhere that you want a small heading that will not appear in the table of contents. </p></dd> </dl> <p>As with subsections, <code>@unnumberedsubsubsec</code> and <code>@appendixsubsubsec</code> do not need to be used in ordinary circumstances, because <code>@subsubsection</code> may also be used within subsections of <code>@unnumbered</code> and <code>@appendix</code> chapters (see <a href="_0040section.html"><code>@section</code>: Sections Below Chapters</a>). </p> <p>In Info, ‘subsub’ titles are underlined with periods. For example, </p> <div class="example"> <pre class="example">@subsubsection This is a subsubsection </pre></div> <p>might produce </p> <div class="example"> <pre class="example">1.2.3.4 This is a subsubsection ............................... </pre></div> <p>The TeX, HTML, DocBook, and XML output is all analogous to the chapter-level output, just “three levels down”; see <a href="_0040chapter.html"><code>@chapter</code>: Chapter Structuring</a>. </p> </div> </body> </html>