〈a, b | ababba=abab〉

Properties

• Infinite non-commutative monoid

Completion parameters

• Reduction order: left-to-right acb
• Auxiliary generator ababb=c

Complete rewriting system

1. cb ⇒ c²
2. cab ⇒ c
3. c²a ⇒ c
4. (ab)² ⇒ ca
5. ca²b ⇒ abca