#5294 ⟨a, b | aaa=aa, aab=aa⟩
Contents
- Properties
- Rewriting system
- Isomorphic instances
- Sum of relation sides is 10
- Infinite non-cancellative non-commutative monoid
- Element ab has infinite order
- Not left cancellative, because left multiplication by a is not injective:
-
a ⋅ a2 = a2 and a ⋅ a = a2, however a2 ≠ a
- Not right cancellative, because right multiplication by a is not injective:
-
a2 ⋅ a = a2 and a ⋅ a = a2, however a2 ≠ a
- Reduction order:
- Left-to-right shortlex with a < b
- Certificate: derivations of all rewriting rules from the defining relations.
# ab:aaa=aa,aab=aa ab - -
aaa=aa
aab=aa
The mapping is from the listed presentation's alphabet to the current rewriting system's alphabet.
4 total
| Σ | # | Presentation | Mapping |
| 11 | 15948 | ⟨a, b | aaa=aa, aaab=aa⟩ | φ(a) = a, φ(b) = b |
| 11 | 16085 | ⟨a, b | aab=aa, aaab=aa⟩ | φ(a) = a, φ(b) = b |
| 11 | 16089 | ⟨a, b | aab=aa, aaba=aa⟩ | φ(a) = a, φ(b) = b |
| 11 | 16473 | ⟨a, b | aaa=aa, aab=aaa⟩ | φ(a) = a, φ(b) = b |