〈a, b | abab=abaa〉

Properties

• Infinite non-commutative monoid

Completion parameters

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

Complete rewriting system

1. ca² ⇒ abc
2. cab ⇒ abc
3. aba² ⇒ c
4. (ab)² ⇒ c
5. cba² ⇒ abac
6. cbab ⇒ abac