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The fourth and lowest level sectioning commands in Texinfo are the `subsub' commands. They are:
@subsubsection
@subsection
.) In a printed manual,
subsubsection titles appear in the table of contents and are numbered
four levels deep.
@unnumberedsubsubsec
@appendixsubsubsec
@subsubheading
@subsubheading
command may be used anywhere that you need
a small heading that will not appear in the table of contents. In
Info, subsubheadings look exactly like ordinary subsubsection
headings.
@unnumberedsubsubsec
and @appendixsubsubsec
do not
need to be used in ordinary circumstances, because
@subsubsection
may also be used within subsections of
@unnumbered
and @appendix
chapters
(see section
).
In Info, `subsub' titles are underlined with periods. For example,
@subsubsection This is a subsubsection
produces
1.2.3.4 This is a subsubsection ...............................