Confused about line of code in "The Rails Way"

I am reading Obie’s book (again) and I am confused about a line on
page 450. This is the book that says “Covers Rails 2.0” in a yellow
circle on the cover.

The erb code is:
<% remote_form_for :addition, @addition, :url => additions_path
:update => ‘result’ do |f|…

A snippet of the output of that erb is listed as:

<form action= "/additions/non_ajax_create" method="post"...

The additions controller has only a new and create action.
What is non_ajax_create ?

Am I missing something or is that a typo?

Thanks in advance

BTW, it is a great book.