Certificate for #571 ⟨a, b | aaa=a, bbb=a

Completion settings:

[1] aaa=a

Axiom: aaa=a.

Referenced by [3].

[2] a=bbb

Axiom: bbb=a.

Flip LHS and RHS.

Defines rule #2.

Referenced by [3], [4].

[3] aaa=bbb

Simplify [1] aaa=a.

Reduce RHS:

[2](a)
bbb

Referenced by [4].

[4] bbbbbbbbb=bbb

Overlap of [3] aaa=bbb with [2] a=bbb:

aaa a

Critical pair: bbbaa=bbb.

Reduce LHS:

[2]bbb(a)a
[2]bbbbbb(a)
bbbbbbbbb

Defines rule #1.