Natural Such a purpose represents a partial function on naturals, wherever the proof of even (n) could possibly be found as being a precondition. From the Cambridge English Corpus There isn't any authentic difference between the usual initially-order objects of the mathematical discourse - including naturals, sets and so forth https://buyayurvedicproductsonline.data.blog/2025/08/18/cureayu-pure-effective-vegetarian-ayurvedic-remedies/