#5405 ⟨a, b | aab=bb, aba=ab⟩
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 a is not injective:
-
a ⋅ ba = ab and a ⋅ b = ab, however ba ≠ b
- Not right cancellative, because right multiplication by b is not injective:
-
a2 ⋅ b = b2 and b ⋅ b = b2, however a2 ≠ b
- Reduction order:
- Left-to-right shortlex with a < b
- Certificate: derivations of all rewriting rules from the defining relations.
# ab:aab=bb,aba=ab ab - -
aab=bb
aba=ab
bba=bb
abbb=abb
bbbb=bbb
The mapping is from the listed presentation's alphabet to the current rewriting system's alphabet.
1 total
| Σ | # | Presentation | Mapping |
| 11 | 16384 | ⟨a, b | aba=ab, aaba=bb⟩ | φ(a) = a, φ(b) = b |