Certificate for #253 ⟨a, b | aa=b, abb=a

Completion settings:

[1] b=aa

Axiom: aa=b.

Flip LHS and RHS.

Defines rule #2.

Referenced by [2].

[2] aaaaa=a

Axiom: abb=a.

Reduce LHS:

[1]a(b)b
[1]aaa(b)
aaaaa

Defines rule #1.