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(g(a)) → a
f(f(x)) → b
g(x) → f(g(x))

Q is empty.


QTRS

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

f(g(a)) → a
f(f(x)) → b
g(x) → f(g(x))

Q is empty.