Natural This type of function signifies a partial perform on naturals, where the proof of even (n) may be found to be a precondition. Through the Cambridge English Corpus There is not any genuine difference between the same old 1st-order objects in the mathematical discourse - for example naturals, sets https://safeherbalsupplements.art.blog/2025/08/18/cureayu-ayurvedic-supplements-online-for-daily-wellness/