Certificate for #17637 ⟨a, b | aaaa=1, aabab=bb

Completion settings:

[1] aaaa=1

Axiom: aaaa=1.

Defines rule #1.

Referenced by [3].

[2] aabab=bb

Axiom: aabab=bb.

Defines rule #3.

Referenced by [3].

[3] aabb=bab

Overlap of [1] aaaa=1 with [2] aabab=bb:

aa aa aabab

Critical pair: aabb=bab.

Defines rule #2.