Section 5, A Trivial Embedding of XQuery, contains the following:

"The following two more complete examples (which are equivalent to one another and to "for $i in (1 to 5) let $j := 4 where $i &lt; $j return <x/><i>{$i}</i></x>") ..."

I believe that this example should read:

for $i in (1 to 5) let $j := 4 where $i < $j return <x><i>{$i}</i></x>

This changes "&lt;" to "<" and "<x/>" to "<x>".