Natural This kind of functionality represents a partial purpose on naturals, where the proof of even (n) might be noticed for a precondition. Within the Cambridge English Corpus There's no genuine difference between the usual first-order objects on the mathematical discourse - for instance naturals, sets and so on - https://vegetarianayurvedicremedies.travel.blog/2025/08/18/best-ayurvedic-brand-in-india-discover-cureayu-health-products/