doc-src/TutorialI/Inductive/inductive.tex

 \index{*inductive|(}
 
 This chapter is dedicated to the most important definition principle after
 recursive functions and datatypes: inductively defined sets.
 
-We start with a simple example \ldots . A slightly more complicated example, the
+We start with a simple example: the set of even numbers.
+A slightly more complicated example, the
 reflexive transitive closure, is the subject of {\S}\ref{sec:rtc}. In particular,
 some standard induction heuristics are discussed. To demonstrate the
 versatility of inductive definitions, {\S}\ref{sec:CFG} presents a case study
 from the realm of context-free grammars. The chapter closes with a discussion
 of advanced forms of inductive definitions.
 
+\input{Inductive/Even}
 \input{Inductive/document/Star}
 \input{Inductive/document/AB}
 
 \index{inductive definition|)}
 \index{*inductive|)}