Certificate for #7360 ⟨a, b, c | ab=1, abba=cb⟩

Completion settings:

[1] ab=1

Axiom: ab=1.

Defines rule #1.

Referenced by [2].

[2] cb=ba

Axiom: abba=cb.

Reduce LHS:

[1](ab)ba
⇒ ba

Flip LHS and RHS.

Defines rule #2.