General ⇒ subsubsections numbered with letters

[florencia]

Hello.
I would like to number the subsubsections of my document (documentclass{book}) with letters (a, b, c, etc) instead of numbers. How could I do that?
Thanks.

[frabjous]

The following:

\setcounter{secnumdepth}{5}
\renewcommand{\thesubsubsection}{\alph{subsubsection}}

Works for me. Use \Alph instead of \alph if you want uppercase numbers.

[gmedina]

... or

Code: Select all

\setcounter{secnumdepth}{3}
\renewcommand{\thesubsubsection}{\thesubsection.\alph{subsubsection}}

if you want to inherit the numbering of the subsections.

[florencia]

Thank you both!
Excellent help!