Certificate for #1307 ⟨a, b, c | ab=1, abcb=b⟩

Completion settings:

[1] ab=1

Axiom: ab=1.

Defines rule #1.

Referenced by [2].

[2] cb=b

Axiom: abcb=b.

Reduce LHS:

[1](ab)cb
⇒ cb

Defines rule #2.