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

Termination of R to be shown.



   R
Dependency Pair Analysis



R contains the following Dependency Pairs:

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

Furthermore, R contains one SCC.


   R
DPs
       →DP Problem 1
Remaining Obligation(s)




The following remains to be proven:
Dependency Pairs:

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


Rule:


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




Termination of R could not be shown.
Duration:
0:01 minutes