Natural This kind of operate signifies a partial function on naturals, where by the proof of even (n) could possibly be found being a precondition. From your Cambridge English Corpus There is not any true distinction between the usual initially-order objects of your mathematical discourse - for instance naturals, sets https://www.tumblr.com/ayurvedicsupplementsonline/792193548357386240/cureayu-ayurvedic-supplements-online-for-daily?source=share