〈a, b | aab=b, bbaaa=b〉

Properties

• Infinite non-commutative monoid

Completion parameters

• Reduction order: left-to-right ab

Complete rewriting system

1. a²b ⇒ b
2. bab ⇒ b
3. b³ ⇒ b
4. ba³ ⇒ b²

Right Cayley graph (truncated)

Left Cayley graph (truncated)