〈a, b | aabbabba=ab〉

Properties

• Infinite non-commutative monoid

Completion parameters

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

Complete rewriting system

1. c³a ⇒ ac³
2. a(c²a)² ⇒ c
3. ab ⇒ ac²a
4. cb ⇒ ac³