Certificate for #4642 ⟨a, b | aaaa=b, abbb=a⟩

Completion settings:

• Reduction order:
  • Left-to-right recursive path with deg(a) = 0; deg(b) = 1

Axiom: aaaa=b.

Flip LHS and RHS.

Defines rule #2.

Referenced by [2].

Axiom: abbb=a.

Reduce LHS:

Defines rule #1.