#1631 ⟨a, b | aab=ab, bba=b⟩
Contents
- Properties
- Rewriting system
- Isomorphic instances
- Sum of relation sides is 9
- Infinite non-cancellative non-commutative monoid
- Element a has infinite order
- Not left cancellative, because left multiplication by b is not injective:
-
b ⋅ a = b and b ⋅ 1 = b, however a ≠ 1
- Not right cancellative, because right multiplication by b is not injective:
-
b ⋅ b = b and 1 ⋅ b = b, however b ≠ 1
- Reduction order:
- Left-to-right shortlex with a < b
- Certificate: derivations of all rewriting rules from the defining relations.
# ab:aab=ab,bba=b ab - -
ba=b
bb=b
aab=ab
The mapping is from the listed presentation's alphabet to the current rewriting system's alphabet.
2 total
| Σ | # | Presentation | Mapping |
|---|
| 10 | 5147 | ⟨a, b | aab=ab, baba=b⟩ | φ(a) = a, φ(b) = b |
| 11 | 15646 | ⟨a, b | aab=ab, baaba=b⟩ | φ(a) = a, φ(b) = b |