〈a, b | aabbaba=bba〉

Properties

• Infinite non-commutative monoid

Completion parameters

• Reduction order: left-to-right ac/b
• Auxiliary generator bba=c

Complete rewriting system

1. a²cba ⇒ c
2. cacba ⇒ a²cbc
3. b²a ⇒ c
4. b²c ⇒ a²cbc