Certificate for #1002 ⟨a, b, c | ab=a, ccb=a⟩

Completion settings:

[1] ab=a

Axiom: ab=a.

Referenced by [3].

[2] a=ccb

Axiom: ccb=a.

Flip LHS and RHS.

Defines rule #2.

Referenced by [3], [4].

[3] ab=ccb

Simplify [1] ab=a.

Reduce RHS:

[2](a)
⇒ ccb

Referenced by [4].

[4] ccbb=ccb

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

ab a

Critical pair: ccbb=ccb.

Defines rule #1.