# numbering of \paragraph command

Due to the limitations of the number of subsubsections, subsubsubsections that we can use, I notice that I could replace that with the command \paragraph. Now when I use that, I am amazed by its function and would like to consult two things:

1. In my first `\paragraph` command of `Chapter 2, section 2.2`, the numbering appear as `2.2.0.1`. May I know if it is possible to change it to `2.2.1`? If it is possible, may I know how it can be done?

2. I notice `\paragraph` command doesn't add the heading to the table of contents. May I know how to incorporate the `Title 1` from `\paragraph{Title 1}` into the table of contents?

Thank You.

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The command `\paragraph` is semantically speaking below `\subsubsection`, so if you skip the latter its number is still at 0. Second, to get paragraph-level (and subparagraph-level) entries to show up in the TOC, issue the instruction `\setcounter{tocdepth}{5}` – Mico Jun 25 '12 at 1:52
@Mico Please make this an answer. I was about to say the same when I saw your comment. – Christian Jun 25 '12 at 6:30
@Christian: Done! :-) – Mico Jun 25 '12 at 10:48

The command `\paragraph` is, semantically speaking, subordinated to the `\subsubsection` command. Each time a LaTeX sectioning command is used, two things happen (inter alia): First, the counter associated with its level -- `part`, `chapter`, `section`, `subsection`, `subsubsection`, `paragraph`, and `subparagraph` -- is incremented by 1; second, the counters of all subordinated sectioning levels are reset to 0. (Just for completeness, I should note that there's an exception to this rule: the `\part` command does not reset the `chapter` counter.)

Why does this matter for your document? Well, in most "standard" LaTeX document classes --such as `article`, `report`, and `book` -- the default style is to display the sectioning header's "number" as a composite of the counters of the current sectioning level and all higher level sectioning groupings (except, usually, the `part` level). So what happens when LaTeX encounters a sequence of commands such as

``````\section{Big ideas}
\subsection{Preliminaries}
\paragraph{Exciting details}
``````

Because no `\subsubsection` command is provided in this example between `\subsection` and `\paragraph`, the counter for the `subsubsection` level is still at 0, and the other counters will be at 1. Therefore, when LaTeX processes the `\paragraph` command, its header will be constructed as

``````1.1.0.1 Exciting details
``````

Moral of the story: Don't skip higher-level sectioning commands when using lower-level sectioning commands such as `\paragraph` or `\subparagraph`.

Regarding your second question, on how to get `paragraph`-level headers displayed in the Table of Contents (ToC). LaTeX has a parameter called `tocdepth`, which controls the depth of sectioning levels that will be shown in the ToC. Most document classes I'm familiar with set this parameter to `3`, which means that only sectioning commands up to and including `subsubsection` will be shown (but not `paragraph` and `subparagraph`, because their associated sectioning levels are set at `4` and `5`, respectively). To get `paragraph` and `subparagraph` headers to be listed in the ToC, just set

``````\setcounter{tocdepth}{5}
``````

in the document's preamble. Happy TeXing!

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Thanks alot Mico. – Sandra Jun 25 '12 at 13:13
@Sandra - you're welcome! :-) – Mico Jun 25 '12 at 13:18