Certification Problem

Input (TPDB TRS_Standard/SK90/2.56)

The rewrite relation of the following TRS is considered.

f(a,x) g(a,x) (1)
g(a,x) f(b,x) (2)
f(a,x) f(b,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#(a,x) f#(b,x) (4)
f#(a,x) g#(a,x) (5)
g#(a,x) f#(b,x) (6)

1.1 Dependency Graph Processor

The dependency pairs are split into 0 components.