Certification Problem

Input (TPDB TRS_Innermost/AG01_innermost/#4.21)

The rewrite relation of the following TRS is considered.

f(1) f(g(1)) (1)
f(f(x)) f(x) (2)
g(0) g(f(0)) (3)
g(g(x)) g(x) (4)
The evaluation strategy is innermost.

Property / Task

Prove or disprove termination.

Answer / Result

Yes.

Proof (by AProVE @ termCOMP 2023)

1 Dependency Pair Transformation

The following set of initial dependency pairs has been identified.
f#(1) f#(g(1)) (5)
f#(1) g#(1) (6)
g#(0) g#(f(0)) (7)
g#(0) f#(0) (8)

1.1 Dependency Graph Processor

The dependency pairs are split into 0 components.