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@@ -1,4 +1,4 @@
-\chapter{Introduction}
+\chapter{Introduction\label{introduction}}
This reference manual describes the Python programming language.
It is not intended as a tutorial.
@@ -29,11 +29,11 @@ text.
Every Python implementation comes with a number of built-in and
standard modules. These are not documented here, but in the separate
-{\em Python Library Reference} document. A few built-in modules are
+\emph{Python Library Reference} document. A few built-in modules are
mentioned when they interact in a significant way with the language
definition.
-\section{Notation}
+\section{Notation\label{notation}}
The descriptions of lexical analysis and syntax use a modified BNF
grammar notation. This uses the following style of definition: