Certificate for #16121 ⟨a, b | aab=aa, baba=aa

Completion settings:

[1] aab=aa

Axiom: aab=aa.

Defines rule #1.

Referenced by [3].

[2] baba=aa

Axiom: baba=aa.

Defines rule #3.

Referenced by [3].

[3] baaa=aaa

Overlap of [2] baba=aa with [2] baba=aa:

ba ba baba

Critical pair: baaa=aaba.

Reduce RHS:

[1](aab)a
aaa

Defines rule #2.