as we know in our universe there are only natural numbersNice to meet you and welcome to our Universe. We've got more and more difficult, is real, is comprehensive, there are the quaternions , etc., so be careful, for the stranger of the quiet natural world there are dangers at every step. Do not believe us, even the AC mains voltage is not natural, not discrete, sinusoidal, although you will be difficult to understand. Well, you still acquire in our Universe.
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