How do I keep my section numbering in Latex but just hide it?

user_481725 0
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I need something like this:

Chapter 1

Preliminaries

1.1 Banach Algebras

I tried this:

\chapter{}
\section*{Preliminaries}
\subsection{Banach Algebras}

The problem is: As soon as I hide the section number using \section*{Preliminaries}, it changes the numbering of the subsection to 0.1 Banach Algebras.

How do I hide the number of the section but keep the number ordering in my subsection?

latex
4 Answers
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