〈a, b | aa=a, babbb=aba〉

Properties

• Infinite non-commutative monoid

Completion parameters

• Reduction order: left-to-right ab

Complete rewriting system

1. a² ⇒ a
2. bab³ ⇒ aba
3. (bab)²a ⇒ aba

Right Cayley graph (truncated)

Left Cayley graph (truncated)