〈a, b | aaa=a, bababb=a〉

Properties

• Infinite non-commutative monoid

Completion parameters

• Reduction order: left-to-right ba

Complete rewriting system

1. ab² ⇒ b²a
2. aba ⇒ ba²
3. a³ ⇒ a
4. b⁴a ⇒ a²

Right Cayley graph (truncated)

Left Cayley graph (truncated)