〈a, b | ab=a, bbaaaa=ba〉

Properties

• Infinite non-commutative monoid

Completion parameters

• Reduction order: left-to-right ab

Complete rewriting system

1. ab ⇒ a
2. b²a ⇒ ba
3. a⁵ ⇒ a²
4. ba⁴ ⇒ ba

Right Cayley graph (truncated)

Left Cayley graph (truncated)