〈a, b | aabba=abb〉

Properties

• Infinite non-commutative monoid

Completion parameters

• Reduction order: left-to-right abc
• Auxiliary generator abb=c

Complete rewriting system

1. ab² ⇒ c
2. aca ⇒ c
3. cb² ⇒ ac²
4. c²a ⇒ ac²