〈a, b | abb=aba, bab=bb〉

Properties

• Infinite non-commutative monoid

Completion parameters

• Reduction order: left-to-right ba

Complete rewriting system

1. b²a ⇒ b³
2. bab ⇒ b²
3. aba ⇒ ab²
4. b⁴ ⇒ b³
5. ab³ ⇒ ab²

Right Cayley graph (truncated)

Left Cayley graph (truncated)