#1030 ⟨a, b, c | ab=c, acc=c⟩
Contents
- Properties
- Rewriting system
- Isomorphic instances
- Sum of relation sides is 7
- Infinite non-cancellative non-commutative monoid
- Element a has infinite order
- Not left cancellative, because left multiplication by a is not injective:
-
a ⋅ (ab)2 = ab and a ⋅ b = ab, however (ab)2 ≠ b
- Not right cancellative, because right multiplication by b is not injective:
-
a2ba ⋅ b = ab and a ⋅ b = ab, however a2ba ≠ a
- Reduction order:
- Left-to-right recursive path with deg(a) = deg(b) = 0, a < b; deg(c) = 1
- Certificate: derivations of all rewriting rules from the defining relations.
# abc:ab=c,acc=c ab/c - -
aabab=ab
c=ab
The mapping is from the listed presentation's alphabet to the current rewriting system's alphabet.
2 total
| Σ | # | Presentation | Mapping |
| 8 | 5501 | ⟨a, b, c | ab=c, aabc=c⟩ | φ(a) = a, φ(b) = b, φ(c) = ab |
| 8 | 6048 | ⟨a, b, c | ab=c, acc=ab⟩ | φ(a) = a, φ(b) = b, φ(c) = ab |