Certification Problem

Input (TPDB TRS_Standard/Rubio_04/p266)

The rewrite relation of the following TRS is considered.

f(f(X)) f(a(b(f(X)))) (1)
f(a(g(X))) b(X) (2)
b(X) a(X) (3)

Property / Task

Prove or disprove termination.

Answer / Result

Yes.

Proof (by NaTT @ termCOMP 2023)

1 Dependency Pair Transformation

The following set of initial dependency pairs has been identified.
f#(f(X)) f#(a(b(f(X)))) (4)
f#(f(X)) b#(f(X)) (5)
f#(a(g(X))) b#(X) (6)

1.1 Dependency Graph Processor

The dependency pairs are split into 0 components.