〈a, b | bba=abb, bbb=aa〉

Properties

• Infinite non-commutative monoid

Completion parameters

• Reduction order: left-to-right b/a

Complete rewriting system

1. bab² ⇒ ab³
2. b²a ⇒ ab²
3. a² ⇒ b³

Right Cayley graph (truncated)

Left Cayley graph (truncated)