Term Rewriting System R:
[x]
f(a, f(a, x)) -> f(a, f(f(a, x), f(a, a)))

Innermost Termination of R to be shown.



   R
Dependency Pair Analysis



R contains the following Dependency Pairs:

F(a, f(a, x)) -> F(a, f(f(a, x), f(a, a)))
F(a, f(a, x)) -> F(f(a, x), f(a, a))
F(a, f(a, x)) -> F(a, a)

Furthermore, R contains one SCC.


   R
DPs
       →DP Problem 1
Narrowing Transformation


Dependency Pair:

F(a, f(a, x)) -> F(a, f(f(a, x), f(a, a)))


Rule:


f(a, f(a, x)) -> f(a, f(f(a, x), f(a, a)))


Strategy:

innermost




On this DP problem, a Narrowing SCC transformation can be performed.
As a result of transforming the rule

F(a, f(a, x)) -> F(a, f(f(a, x), f(a, a)))
one new Dependency Pair is created:

F(a, f(a, f(a, x''))) -> F(a, f(f(a, f(f(a, x''), f(a, a))), f(a, a)))

The transformation is resulting in no new DP problems.


Innermost Termination of R successfully shown.
Duration:
0:00 minutes