〈a, b | aabbbbaa=ab〉

Properties

• Infinite non-commutative monoid

Completion parameters

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

Complete rewriting system

1. c²a² ⇒ (ac)²
2. a(ca²)⁴ ⇒ c
3. ab ⇒ aca²
4. cb ⇒ (ac)²