| Up: | Monoids with two generators and one relation |
|---|---|
| Prev: | #19 ⟨a, b | aba=a⟩ |
| Next: | #21 ⟨a, b | ab=aa⟩ |
| # | Rule | Proof |
|---|---|---|
| 1. | aba ⇒ b | [1] |
| 2. | b2a ⇒ ab2 | [2] |
# ab:aba=b ab aba=b bba=abb
| Σ | # | Presentation | Description | Related |
|---|---|---|---|---|
| 4 | 14 | ⟨a, b | abba=1⟩ | Infinite non-Abelian group | 14 iso |
| 4 | 23 | ⟨a, b | bb=aa⟩ | Infinite cancellative non-commutative monoid |