〈a, b | aba=bb, baa=aab〉

Properties

• Infinite non-commutative monoid

Completion parameters

• Reduction order: left-to-right a/b

Complete rewriting system

1. a²b ⇒ ba²
2. b² ⇒ aba
3. (ab)² ⇒ (ba)²

Right Cayley graph (truncated)

Left Cayley graph (truncated)