〈a, b | aabbaab=bba〉

Properties

• Infinite non-commutative monoid

Completion parameters

• Reduction order: right-to-left a/bc
• Auxiliary generator bba=c

Complete rewriting system

1. b²a ⇒ c
2. a²cab ⇒ c
3. a(ac)² ⇒ cba
4. b²c ⇒ (ca)²b