〈a, b | aab=bb, abaa=bb〉

Properties

• Infinite non-commutative monoid

Completion parameters

• Reduction order: left-to-right a/b

Complete rewriting system

1. aba⁸ ⇒ aba⁶
2. a²b ⇒ aba²
3. b² ⇒ aba²
4. baba² ⇒ aba⁶

Right Cayley graph (truncated)

Left Cayley graph (truncated)