〈a, b | aabbaab=ba〉

Properties

• Infinite non-commutative monoid

Completion parameters

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

Complete rewriting system

1. (a²c²a)²c² ⇒ ca
2. ba ⇒ a²c²ab
3. bc ⇒ c²ab
4. (a²c²a)²b² ⇒ c