Certificate for #1616 ⟨a, b | aab=aa, bab=a

Completion settings:

[1] aab=aa

Axiom: aab=aa.

Defines rule #1.

Referenced by [3].

[2] bab=a

Axiom: bab=a.

Defines rule #3.

Referenced by [3].

[3] baa=aa

Overlap of [2] bab=a with [2] bab=a:

ba b bab

Critical pair: baa=aab.

Reduce RHS:

[1](aab)
aa

Defines rule #2.