Certificate for #126 ⟨a, b, c | ab=c, acc=1⟩

Completion settings:

[1] c=ab

Axiom: ab=c.

Flip LHS and RHS.

Defines rule #2.

Referenced by [2].

[2] aabab=1

Axiom: acc=1.

Reduce LHS:

[1]a(c)c
[1]⇒ aab(c)
⇒ aabab

Defines rule #1.