Paragraphs in a Subsubsection in a Subsection in an Appendix
The paragraphs element can go in any division, but does not get a number.
Appendix D A Structured Appendix
A deeply-structured appendix for testing purposes.
Subsection D.1 A Subsection in an Appendix
Inside a subsection.
Subsubsection D.1.1 A Subsubsection in a Subsection in an Appendix
Nearly terminal.