〈a, b | abbaaaab=aa〉

Properties

• Infinite non-commutative monoid

Completion parameters

• Reduction order: left-to-right ca/b
• Auxiliary generator bb=c

Complete rewriting system

1. aca³ca⁴c ⇒ a²
2. a(a⁴c)² ⇒ aca³ca⁵
3. cb ⇒ bc
4. a²b ⇒ aca⁴c
5. b² ⇒ c