Certificate for #20179 ⟨a, b | aba=a, aaaa=abb⟩

Completion settings:

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

Axiom: aba=a.

Defines rule #1.

Axiom: aaaa=abb.

Flip LHS and RHS.

Defines rule #2.