Certification Problem

Input (COPS 940)

We consider the TRS containing the following rules:

a(a(b(a(b(a(b(a(b(x))))))))) a(b(a(b(a(b(a(b(a(a(a(a(a(b(x)))))))))))))) (1)

The underlying signature is as follows:

{a/1, b/1}

Property / Task

Prove or disprove confluence.

Answer / Result

Yes.

Proof (by ACP @ CoCo 2022)

1 Strongly closed

Confluence is proven since the TRS is strongly closed. The joins can be performed using 0 step(s).