〈a, b | abababba=ba〉

Properties

• Infinite non-commutative monoid

Completion parameters

• Reduction order: left-to-right c/ab
• Auxiliary generator bab=c

Complete rewriting system

1. bc ⇒ cac²
2. bac ⇒ cab
3. (ac)³c ⇒ c
4. bab ⇒ c
5. b²a ⇒ cacba
6. (ac)³ba ⇒ ba