Certificate for #4516 ⟨a, b, c | abc=1, abba=a⟩

Completion settings:

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

Axiom: abc=1.

Defines rule #2.

Referenced by [3].

Axiom: abba=a.

Referenced by [3].

Overlap of [2] abba=a with [1] abc=1:

Critical pair: abb=abc.

Reduce RHS:

Defines rule #1.