2.5 Functions and operators "For instance, the fn:unordered returns" Insert "function" before or after "fn:unordered", or else delete "the".
The fix for this bug does not appear in the Recommendation of 23 January 2007. It will be considered for a future publication (either an Errata document or some possible future version of the specification).
Of the three alternatives, I chose to insert "function" after "fn:unordered", as "the fn:foo function" is generally how this spec's prose refers to standard functions. This issue has been entered as FS erratum E044, and the fix has been committed to the source files for the next edition of the FS document. Consequently, I'm marking this issue resolved-FIXED, and CLOSED.