〈a, b | baab=aa, bbbb=1〉

Properties

• Infinite non-commutative monoid

Completion parameters

• Reduction order: left-to-right b/a

Complete rewriting system

1. b⁴ ⇒ 1
2. ba² ⇒ a²b³

Right Cayley graph (truncated)

Left Cayley graph (truncated)