〈a, b | aabaab=aabb〉

Properties

• Infinite non-commutative monoid

Completion parameters

• Reduction order: left-to-right a/bc
• Auxiliary generator aabb=c

Complete rewriting system

1. a²b² ⇒ c
2. (a²b)² ⇒ c
3. cb ⇒ a²bc
4. ca²b ⇒ a²bc