〈a, b | bab=aba, bba=ba〉

Properties

• Infinite non-commutative monoid

Completion parameters

• Reduction order: left-to-right ba

Complete rewriting system

1. b²a ⇒ ba
2. aba ⇒ bab
3. bab² ⇒ bab

Right Cayley graph (truncated)

Left Cayley graph (truncated)