Natural Such a purpose signifies a partial operate on naturals, in which the evidence of even (n) might be found like a precondition. Within the Cambridge English Corpus There's no serious difference between the standard initially-order objects with the mathematical discourse - for instance naturals, sets and so forth - https://onlineherbalmedicines.blogspot.com/2025/09/cureayu-top-ayurvedic-brand-for.html