Certificate for #4578 ⟨a, b, c | abc=1, bbca=a⟩

Completion settings:

[1] abc=1

Axiom: abc=1.

Defines rule #1.

Referenced by [3].

[2] bbca=a

Axiom: bbca=a.

Referenced by [3].

[3] bbc=1

Overlap of [2] bbca=a with [1] abc=1:

bbc a abc

Critical pair: bbc=abc.

Reduce RHS:

[1](abc)
⇒ 1

Defines rule #2.