Certificate for #268 ⟨a, b | abba=bbb⟩

Completion settings:

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

Axiom: abba=bbb.

Defines rule #1.

Referenced by [2].

Overlap of [1] abba=bbb with [1] abba=bbb:

Critical pair: abbbbb=bbbbba.

Flip LHS and RHS.

Defines rule #2.