Certificate for #6693 ⟨a, b | aab=b, abbb=bb

Completion settings:

[1] aab=b

Axiom: aab=b.

Defines rule #2.

Referenced by [3], [4].

[2] abbb=bb

Axiom: abbb=bb.

Referenced by [3].

[3] abb=bbb

Overlap of [1] aab=b with [2] abbb=bb:

a ab abbb

Critical pair: abb=bbb.

Defines rule #1.

Referenced by [4].

[4] bbbb=bb

Overlap of [1] aab=b with [3] abb=bbb:

a ab abb

Critical pair: abbb=bb.

Reduce LHS:

[3](abb)b
bbbb

Defines rule #3.