〈a, b | bba=abb, bbb=ab〉

Properties

• Infinite non-commutative monoid

Completion parameters

• Reduction order: left-to-right b/a

Complete rewriting system

1. ab ⇒ b³
2. b²a ⇒ b⁴

Right Cayley graph (truncated)

Left Cayley graph (truncated)