〈a, b | aba=bb, babb=ab〉

Properties

• Infinite non-commutative monoid

Completion parameters

• Reduction order: right-to-left b/a

Complete rewriting system

1. b⁸ ⇒ b²
2. ab ⇒ b⁵a
3. b²a² ⇒ b⁵

Right Cayley graph (truncated)

Left Cayley graph (truncated)