⁠-tuple. Once the index set would be the list of all purely natural quantities an indexed loved ones is named a sequence. ⁠ plus the set of all real quantities contain the exact same cardinality, a bijection becoming provided by the function ⁠ x ↦ tan ⁡ ( π x https://m-m-c-ng-s-i-g-n74936.widblog.com/90933046/about-dịch-vụ-đồ-cúng-khai-trương