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:
f2(x, 0) -> s1(0)
f2(s1(x), s1(y)) -> s1(f2(x, y))
g2(0, x) -> g2(f2(x, x), x)
Q is empty.
↳ QTRS
↳ Non-Overlap Check
Q restricted rewrite system:
The TRS R consists of the following rules:
f2(x, 0) -> s1(0)
f2(s1(x), s1(y)) -> s1(f2(x, y))
g2(0, x) -> g2(f2(x, x), x)
Q is empty.
The TRS is non-overlapping. Hence, we can switch to innermost.
↳ QTRS
↳ Non-Overlap Check
↳ QTRS
↳ DependencyPairsProof
Q restricted rewrite system:
The TRS R consists of the following rules:
f2(x, 0) -> s1(0)
f2(s1(x), s1(y)) -> s1(f2(x, y))
g2(0, x) -> g2(f2(x, x), x)
The set Q consists of the following terms:
f2(x0, 0)
f2(s1(x0), s1(x1))
g2(0, x0)
Using Dependency Pairs [1,13] we result in the following initial DP problem:
Q DP problem:
The TRS P consists of the following rules:
G2(0, x) -> F2(x, x)
G2(0, x) -> G2(f2(x, x), x)
F2(s1(x), s1(y)) -> F2(x, y)
The TRS R consists of the following rules:
f2(x, 0) -> s1(0)
f2(s1(x), s1(y)) -> s1(f2(x, y))
g2(0, x) -> g2(f2(x, x), x)
The set Q consists of the following terms:
f2(x0, 0)
f2(s1(x0), s1(x1))
g2(0, x0)
We have to consider all minimal (P,Q,R)-chains.
↳ QTRS
↳ Non-Overlap Check
↳ QTRS
↳ DependencyPairsProof
↳ QDP
↳ DependencyGraphProof
Q DP problem:
The TRS P consists of the following rules:
G2(0, x) -> F2(x, x)
G2(0, x) -> G2(f2(x, x), x)
F2(s1(x), s1(y)) -> F2(x, y)
The TRS R consists of the following rules:
f2(x, 0) -> s1(0)
f2(s1(x), s1(y)) -> s1(f2(x, y))
g2(0, x) -> g2(f2(x, x), x)
The set Q consists of the following terms:
f2(x0, 0)
f2(s1(x0), s1(x1))
g2(0, x0)
We have to consider all minimal (P,Q,R)-chains.
The approximation of the Dependency Graph [13,14,18] contains 1 SCC with 2 less nodes.
↳ QTRS
↳ Non-Overlap Check
↳ QTRS
↳ DependencyPairsProof
↳ QDP
↳ DependencyGraphProof
↳ QDP
↳ QDPOrderProof
Q DP problem:
The TRS P consists of the following rules:
F2(s1(x), s1(y)) -> F2(x, y)
The TRS R consists of the following rules:
f2(x, 0) -> s1(0)
f2(s1(x), s1(y)) -> s1(f2(x, y))
g2(0, x) -> g2(f2(x, x), x)
The set Q consists of the following terms:
f2(x0, 0)
f2(s1(x0), s1(x1))
g2(0, x0)
We have to consider all minimal (P,Q,R)-chains.
We use the reduction pair processor [13].
The following pairs can be strictly oriented and are deleted.
F2(s1(x), s1(y)) -> F2(x, y)
The remaining pairs can at least by weakly be oriented.
none
Used ordering: Combined order from the following AFS and order.
F2(x1, x2) = F1(x1)
s1(x1) = s1(x1)
Lexicographic Path Order [19].
Precedence: trivial
The following usable rules [14] were oriented:
none
↳ QTRS
↳ Non-Overlap Check
↳ QTRS
↳ DependencyPairsProof
↳ QDP
↳ DependencyGraphProof
↳ QDP
↳ QDPOrderProof
↳ QDP
↳ PisEmptyProof
Q DP problem:
P is empty.
The TRS R consists of the following rules:
f2(x, 0) -> s1(0)
f2(s1(x), s1(y)) -> s1(f2(x, y))
g2(0, x) -> g2(f2(x, x), x)
The set Q consists of the following terms:
f2(x0, 0)
f2(s1(x0), s1(x1))
g2(0, x0)
We have to consider all minimal (P,Q,R)-chains.
The TRS P is empty. Hence, there is no (P,Q,R) chain.