Certificate for #4863 ⟨a, b | abbaabba=aba⟩

Completion settings:

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

Axiom: abbaabba=aba.

Defines rule #2.

Referenced by [2].

Overlap of [1] abbaabba=aba with [1] abbaabba=aba:

Critical pair: abbaaba=abaabba.

Defines rule #1.