Certificate for #15669 ⟨a, b | aab=ab, bbbba=a

Completion settings:

[1] aab=ab

Axiom: aab=ab.

Defines rule #2.

Referenced by [3].

[2] bbbba=a

Axiom: bbbba=a.

Defines rule #3.

Referenced by [3].

[3] aaa=aa

Overlap of [1] aab=ab with [2] bbbba=a:

aa b bbbba

Critical pair: aaa=abbbba.

Reduce RHS:

[2]a(bbbba)
aa

Defines rule #1.