〈a, b | aab=b, baaaa=bb〉

Properties

• Infinite non-commutative monoid

Completion parameters

• Reduction order: left-to-right a/b

Complete rewriting system

1. ba⁸ ⇒ ba⁴
2. a²b ⇒ b
3. b² ⇒ ba⁴

Right Cayley graph (truncated)

Left Cayley graph (truncated)