Certificate for #17665 ⟨a, b | aaaa=1, abbbb=ab

Completion settings:

[1] aaaa=1

Axiom: aaaa=1.

Defines rule #1.

Referenced by [3].

[2] abbbb=ab

Axiom: abbbb=ab.

Referenced by [3].

[3] bbbb=b

Overlap of [1] aaaa=1 with [2] abbbb=ab:

aaa a abbbb

Critical pair: aaaab=bbbb.

Reduce LHS:

[1](aaaa)b
b

Flip LHS and RHS.

Defines rule #2.