#15782 ⟨a, b | aab=bb, babba=b⟩
Contents
- Properties
- Rewriting system
- Isomorphic instances
- Sum of relation sides is 11
- Infinite non-cancellative non-commutative monoid
- Element a has infinite order
- Not left cancellative, because left multiplication by b is not injective:
-
b ⋅ b3 = b and b ⋅ 1 = b, however b3 ≠ 1
- Not right cancellative, because right multiplication by b is not injective:
-
b3 ⋅ b = b and 1 ⋅ b = b, however b3 ≠ 1
- Reduction order:
- Left-to-right shortlex with b < a
- Certificate: derivations of all rewriting rules from the defining relations.
# ab:aab=bb,babba=b ba - -
bab=bba
baa=bb
aab=bb
bbbb=b
The mapping is from the listed presentation's alphabet to the current rewriting system's alphabet.
1 total
| Σ | # | Presentation | Mapping |
|---|
| 11 | 15790 | ⟨a, b | aab=bb, bbaba=b⟩ | φ(a) = a, φ(b) = b |