〈a, b | abaab=ba〉

Properties

• Infinite non-commutative monoid

Completion parameters

• Reduction order: left-to-right c/ab
• Auxiliary generator baa=c

Complete rewriting system

1. ca ⇒ ac²
2. c⁴b ⇒ bc
3. ba ⇒ acb
4. a²c³b ⇒ c