Termination w.r.t. Q of the following Term Rewriting System could not be shown:

Q restricted rewrite system:
The TRS R consists of the following rules:

f(f(x)) → f(x)
g(0) → g(f(0))

Q is empty.


QTRS

Q restricted rewrite system:
The TRS R consists of the following rules:

f(f(x)) → f(x)
g(0) → g(f(0))

Q is empty.