Certificate for #398 ⟨a, b, c | abc=a, cab=1⟩

Completion settings:

[1] abc=a

Axiom: abc=a.

Defines rule #4.

Referenced by [3], [4].

[2] cab=1

Axiom: cab=1.

Referenced by [3], [5].

[3] ca=c

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

c ab abc

Critical pair: ca=c.

Defines rule #2.

Referenced by [4], [5].

[4] aa=a

Overlap of [1] abc=a with [3] ca=c:

ab c ca

Critical pair: abc=aa.

Reduce LHS:

[1](abc)
⇒ a

Flip LHS and RHS.

Defines rule #1.

[5] cb=1

Overlap of [2] cab=1 with [3] ca=c:

cab ca

Critical pair: cb=1.

Defines rule #3.