Certificate for #16169 ⟨a, b | aab=ab, abba=aa⟩

Completion settings:

• Reduction order:
  • Left-to-right shortlex with a < b

Axiom: aab=ab.

Defines rule #2.

Referenced by [3].

Axiom: abba=aa.

Defines rule #3.

Referenced by [3].

Overlap of [1] aab=ab with [2] abba=aa:

Critical pair: aaa=abba.

Reduce RHS:

Defines rule #1.