User blog comment:Ynought/Extended degree function/@comment-35470197-20181230222231/@comment-35470197-20190101134509

> every \(t\)

I see. (The point was that you wrote "every first entry of the upper value of \(t\)" but not "the first entry of the upper value of every \(t\)".)

I will try to consider the termination more. Do you have any idea to show it? Since Rule 1.1.2, 1.1.3, 2.1.2, and 2.1.3 change terms which are not necessarily the current one, it is not so easy to set a well-founded partial relation, which helps for us to ensure the termination.