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, y, a), z, w) → f(z, w, f(y, x, z))
Q is empty.
↳ QTRS
↳ DependencyPairsProof
Q restricted rewrite system:
The TRS R consists of the following rules:
f(f(x, y, a), z, w) → f(z, w, f(y, x, z))
Q is empty.
Using Dependency Pairs [1,13] we result in the following initial DP problem:
Q DP problem:
The TRS P consists of the following rules:
F(f(x, y, a), z, w) → F(y, x, z)
F(f(x, y, a), z, w) → F(z, w, f(y, x, z))
The TRS R consists of the following rules:
f(f(x, y, a), z, w) → f(z, w, f(y, x, z))
Q is empty.
We have to consider all minimal (P,Q,R)-chains.
↳ QTRS
↳ DependencyPairsProof
↳ QDP
Q DP problem:
The TRS P consists of the following rules:
F(f(x, y, a), z, w) → F(y, x, z)
F(f(x, y, a), z, w) → F(z, w, f(y, x, z))
The TRS R consists of the following rules:
f(f(x, y, a), z, w) → f(z, w, f(y, x, z))
Q is empty.
We have to consider all minimal (P,Q,R)-chains.