Certificate for #553 ⟨a, b | aba=b, aaaa=1⟩

Completion settings:

• Reduction order:
  • Left-to-right recursive path with deg(a) = 0; deg(b) = 1

Axiom: aba=b.

Referenced by [3].

Axiom: aaaa=1.

Defines rule #1.

Referenced by [3].

Overlap of [1] aba=b with [2] aaaa=1:

Critical pair: ab=baaa.

Defines rule #2.