〈a, b | abab=1, aabba=ba〉

Properties

• Infinite non-commutative monoid

Completion parameters

• Reduction order: left-to-right ab

Complete rewriting system

1. a²b² ⇒ b
2. (ab)² ⇒ 1

Right Cayley graph (truncated)

Left Cayley graph (truncated)