〈a, b | abb=aaa, bba=ba〉

Properties

• Infinite non-commutative monoid

Completion parameters

• Reduction order: left-to-right a/b

Complete rewriting system

1. a⁶ ⇒ a⁴
2. aba ⇒ a⁴
3. b²a ⇒ ba
4. ab² ⇒ a³

Right Cayley graph (truncated)

Left Cayley graph (truncated)