#5201 ⟨a, b | aab=bb, abab=b⟩
Contents
- Properties
- Rewriting system
- Isomorphic instances
- Sum of relation sides is 10
- Infinite non-cancellative non-commutative monoid
- Element a has infinite order
- Not left cancellative, because left multiplication by b is not injective:
-
b ⋅ b2 = b and b ⋅ 1 = b, however b2 ≠ 1
- Not right cancellative, because right multiplication by b is not injective:
-
b2 ⋅ b = b and 1 ⋅ b = b, however b2 ≠ 1
- Reduction order:
- Left-to-right shortlex with a < b
- Certificate: derivations of all rewriting rules from the defining relations.
# ab:aab=bb,abab=b ab - -
aab=bb
bab=abb
bbb=b
The mapping is from the listed presentation's alphabet to the current rewriting system's alphabet.
4 total
| Σ | # | Presentation | Mapping |
| 11 | 12258 | ⟨a, b | aaab=ab, baba=a⟩ | φ(a) = b, φ(b) = a |
| 11 | 12384 | ⟨a, b | aaba=ba, abba=a⟩ | φ(a) = b, φ(b) = a |
| 11 | 12392 | ⟨a, b | aaba=ba, baba=a⟩ | φ(a) = b, φ(b) = a |
| 11 | 12396 | ⟨a, b | aaba=ba, bbaa=a⟩ | φ(a) = b, φ(b) = a |