〈a, b | aaaa=a, bbabb=a〉

Properties

• Infinite non-commutative monoid

Completion parameters

• Reduction order: left-to-right ab

Complete rewriting system

1. b²a ⇒ ab²
2. a⁴ ⇒ a
3. ab⁴ ⇒ a

Right Cayley graph (truncated)

Left Cayley graph (truncated)