〈a, b | aabaa=aab〉

Properties

• Infinite non-commutative monoid

Completion parameters

• Reduction order: left-to-right acb
• Auxiliary generator aab=c

Complete rewriting system

1. cb ⇒ c²
2. a²b ⇒ c
3. ca² ⇒ c
4. cab ⇒ cac