Termination w.r.t. Q of the following Term Rewriting System could be proven:

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

f1(x) -> s1(x)
f1(s1(s1(x))) -> s1(f1(f1(x)))

Q is empty.


QTRS
  ↳ DependencyPairsProof

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

f1(x) -> s1(x)
f1(s1(s1(x))) -> s1(f1(f1(x)))

Q is empty.

Q DP problem:
The TRS P consists of the following rules:

F1(s1(s1(x))) -> F1(x)
F1(s1(s1(x))) -> F1(f1(x))

The TRS R consists of the following rules:

f1(x) -> s1(x)
f1(s1(s1(x))) -> s1(f1(f1(x)))

Q is empty.
We have to consider all minimal (P,Q,R)-chains.

↳ QTRS
  ↳ DependencyPairsProof
QDP
      ↳ QDPAfsSolverProof

Q DP problem:
The TRS P consists of the following rules:

F1(s1(s1(x))) -> F1(x)
F1(s1(s1(x))) -> F1(f1(x))

The TRS R consists of the following rules:

f1(x) -> s1(x)
f1(s1(s1(x))) -> s1(f1(f1(x)))

Q is empty.
We have to consider all minimal (P,Q,R)-chains.
By using an argument filtering and a montonic ordering, at least one Dependency Pair of this SCC can be strictly oriented.

F1(s1(s1(x))) -> F1(x)
F1(s1(s1(x))) -> F1(f1(x))
Used argument filtering: F1(x1)  =  x1
s1(x1)  =  s1(x1)
f1(x1)  =  f1(x1)
Used ordering: Quasi Precedence: [s_1, f_1]


↳ QTRS
  ↳ DependencyPairsProof
    ↳ QDP
      ↳ QDPAfsSolverProof
QDP
          ↳ PisEmptyProof

Q DP problem:
P is empty.
The TRS R consists of the following rules:

f1(x) -> s1(x)
f1(s1(s1(x))) -> s1(f1(f1(x)))

Q is empty.
We have to consider all minimal (P,Q,R)-chains.
The TRS P is empty. Hence, there is no (P,Q,R) chain.