Certificate for #6891 ⟨a, b, c | ab=1, abcbc=c⟩

Completion settings:

[1] ab=1

Axiom: ab=1.

Defines rule #1.

Referenced by [2].

[2] cbc=c

Axiom: abcbc=c.

Reduce LHS:

[1](ab)cbc
⇒ cbc

Defines rule #2.