Certificate for #15642 ⟨a, b | aab=ab, baaaa=b

Completion settings:

[1] aab=ab

Axiom: aab=ab.

Defines rule #1.

Referenced by [3].

[2] baaaa=b

Axiom: baaaa=b.

Defines rule #3.

Referenced by [3].

[3] bab=bb

Overlap of [2] baaaa=b with [1] aab=ab:

baa aa aab

Critical pair: baaab=bb.

Reduce LHS:

[1]ba(aab)
[1]b(aab)
bab

Defines rule #2.