Certificate for #4731 ⟨a, b | aabb=a, abab=a⟩

Completion settings:

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

Axiom: aabb=a.

Defines rule #2.

Axiom: abab=a.

Referenced by [3].

Overlap of [2] abab=a with [2] abab=a:

Critical pair: aba=aab.

Defines rule #1.