#20632 ⟨a, b | ab=aa, bbbaaa=a⟩
Contents
- Properties
- Rewriting system
- Isomorphic instances
- Sum of relation sides is 11
- Infinite non-cancellative non-commutative monoid
- Element b has infinite order
- Not left cancellative, because left multiplication by a is not injective:
-
a ⋅ b = a2 and a ⋅ a = a2, however b ≠ a
- Not right cancellative, because right multiplication by a is not injective:
-
a5 ⋅ a = a and 1 ⋅ a = a, however a5 ≠ 1
- Reduction order:
- Left-to-right shortlex with a < b
- Certificate: derivations of all rewriting rules from the defining relations.
# ab:ab=aa,bbbaaa=a ab - -
ab=aa
bbba=aaaa
aaaaaa=a
The mapping is from the listed presentation's alphabet to the current rewriting system's alphabet.
3 total
| Σ | # | Presentation | Mapping |
| 11 | 20634 | ⟨a, b | ab=aa, bbbaab=a⟩ | φ(a) = a, φ(b) = b |
| 11 | 20636 | ⟨a, b | ab=aa, bbbaba=a⟩ | φ(a) = a, φ(b) = b |
| 11 | 20638 | ⟨a, b | ab=aa, bbbabb=a⟩ | φ(a) = a, φ(b) = b |