Certificate for #20174 ⟨a, b | aab=b, bbbb=bba⟩

Completion settings:

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

Axiom: aab=b.

Defines rule #3.

Referenced by [3].

Axiom: bbbb=bba.

Flip LHS and RHS.

Defines rule #2.

Referenced by [3].

Overlap of [2] bba=bbbb with [1] aab=b:

Critical pair: bbb=bbbbab.

Reduce RHS:

Flip LHS and RHS.

Defines rule #1.