Certificate for #5311 ⟨a, b | aaa=ab, aab=aa

Completion settings:

[1] ab=aaa

Axiom: aaa=ab.

Flip LHS and RHS.

Defines rule #2.

Referenced by [2].

[2] aaaa=aa

Axiom: aab=aa.

Reduce LHS:

[1]a(ab)
aaaa

Defines rule #1.