〈a, b | aba=a, baab=aa〉

Properties

• Infinite non-commutative monoid

Completion parameters

• Reduction order: left-to-right ab

Complete rewriting system

1. a²b ⇒ a³
2. aba ⇒ a
3. ba² ⇒ a³
4. a⁴ ⇒ a²

Right Cayley graph (truncated)

Left Cayley graph (truncated)