| Up: | Monoids with two generators and one relation |
|---|---|
| Prev: | #22 ⟨a, b | ba=ab⟩ |
| Next: | #24 ⟨a, b | aaaaa=1⟩ |
| # | Rule | Proof |
|---|---|---|
| 1. | b2 ⇒ a2 | [1] |
| 2. | ba2 ⇒ a2b | [2] |
# ab:bb=aa ab bb=aa baa=aab
| Σ | # | Presentation | Description | Related |
|---|---|---|---|---|
| 4 | 14 | ⟨a, b | abba=1⟩ | Infinite non-Abelian group | 14 iso |
| 4 | 20 | ⟨a, b | aba=b⟩ | Infinite cancellative non-commutative monoid |