〈a, b | aaab=aa, bbbb=b〉

Properties

• Infinite non-commutative monoid

Completion parameters

• Reduction order: left-to-right a/b

Complete rewriting system

1. a⁵ ⇒ a²
2. a²b ⇒ a⁴
3. b⁴ ⇒ b

Right Cayley graph (truncated)

Left Cayley graph (truncated)