Certificate for #16237 ⟨a, b | aab=ba, abbb=aa⟩

Completion settings:

[1] ba=aab

Axiom: aab=ba.

Flip LHS and RHS.

Defines rule #2.

Referenced by [3], [4].

[2] abbb=aa

Axiom: abbb=aa.

Defines rule #3.

Referenced by [3], [4].

[3] aaaab=aaab

Overlap of [1] ba=aab with [2] abbb=aa:

b a abbb

Critical pair: baa=aabbbb.

Reduce LHS:

[1](ba)a
[1]⇒ aa(ba)
⇒ aaaab

Reduce RHS:

[2]a(abbb)b
⇒ aaab

Referenced by [4].

[4] aaaa=aaa

Overlap of [2] abbb=aa with [1] ba=aab:

abb b ba

Critical pair: abbaab=aaa.

Reduce LHS:

[1]ab(ba)ab
[1]⇒ a(ba)abab
[1]⇒ aaa(ba)bab
[3]⇒ a(aaaab)bab
[3]⇒ (aaaab)bab
[1]⇒ aaab(ba)b
[1]⇒ aaa(ba)abb
[3]⇒ a(aaaab)abb
[3]⇒ (aaaab)abb
[1]⇒ aaa(ba)bb
[3]⇒ a(aaaab)bb
[3]⇒ (aaaab)bb
[2]⇒ aa(abbb)
⇒ aaaa

Defines rule #1.