Certificate for #971 ⟨a, b | abaaaba=aa

Completion settings:

[1] abaaaba=aa

Axiom: abaaaba=aa.

Defines rule #2.

Referenced by [2].

[2] abaaaa=aaaaba

Overlap of [1] abaaaba=aa with [1] abaaaba=aa:

abaa aba abaaaba

Critical pair: abaaaa=aaaaba.

Defines rule #1.