?-tuple. Once the index set is the set of all purely natural figures an indexed family is referred to as a sequence.That the wheels have been but small, could possibly be guessed from the tailor made they have got of taking them off, and location them on.B?t k? ai ?ang kinh doanh khi b?t ??u n?m m?i ??u th?c Hello?n l? cúng khai tr??ng v?i mong mu