Certificate for #590 ⟨a, b | babb=aaaa⟩

Completion settings:

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

Axiom: babb=aaaa.

Flip LHS and RHS.

Defines rule #1.

Referenced by [2].

Overlap of [1] aaaa=babb with [1] aaaa=babb:

Critical pair: ababb=babba.

Defines rule #2.