possible typo on 8.2 manual

on the link:
http://www.postgresql.org/docs/8.2/static/rules-update.html

you will notice that from items are repeated. Is this correct?

...
  FROM shoelace_arrive shoelace_arrive, shoelace_ok shoelace_ok,
       shoelace_ok *OLD*, shoelace_ok *NEW*,
       shoelace shoelace, shoelace *OLD*,
       shoelace *NEW*, shoelace_data shoelace_data
...

Regards,

Richard Broersma Jr.