Certificate for #156 ⟨a, b, c | ab=a, cb=a⟩

Completion settings:

[1] ab=a

Axiom: ab=a.

Referenced by [3].

[2] a=cb

Axiom: cb=a.

Flip LHS and RHS.

Defines rule #2.

Referenced by [3], [4].

[3] ab=cb

Simplify [1] ab=a.

Reduce RHS:

[2](a)
⇒ cb

Referenced by [4].

[4] cbb=cb

Overlap of [3] ab=cb with [2] a=cb:

ab a

Critical pair: cbb=cb.

Defines rule #1.