Certificate for #2230 ⟨a, b | ab=aa, aaa=ba

Completion settings:

[1] ab=aa

Axiom: ab=aa.

Defines rule #3.

Referenced by [3].

[2] ba=aaa

Axiom: aaa=ba.

Flip LHS and RHS.

Defines rule #2.

Referenced by [3].

[3] aaaa=aaa

Overlap of [1] ab=aa with [2] ba=aaa:

a b ba

Critical pair: aaaa=aaa.

Defines rule #1.