〈a, b | aba=ab, bbaa=bb〉

Properties

• Infinite non-commutative monoid

Completion parameters

• Reduction order: left-to-right ab

Complete rewriting system

1. aba ⇒ ab
2. ab²a ⇒ ab²
3. b²a² ⇒ b²
4. b³a ⇒ b³

Right Cayley graph (truncated)

Left Cayley graph (truncated)