〈a, b | aaa=ab, bbaa=ba〉

Properties

• Infinite non-commutative monoid

Completion parameters

• Reduction order: left-to-right a/b

Complete rewriting system

1. a⁷ ⇒ a⁴
2. ba⁴ ⇒ ba
3. ab ⇒ a³
4. b²a ⇒ ba³

Right Cayley graph (truncated)

Left Cayley graph (truncated)