〈a, b | baab=aba, bbbb=1〉

Properties

• Infinite non-commutative monoid

Completion parameters

• Reduction order: left-to-right b/a

Complete rewriting system

1. b⁴ ⇒ 1
2. ba² ⇒ abab³
3. b³aba ⇒ a²b

Right Cayley graph (truncated)

Left Cayley graph (truncated)