Sets of Numbers

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In this video I review the sets of numbers that we use in Math: Natural numbers, Whole numbers, Integers, Rationals, Irrationals and Reals ( I didn't mention the complex numbers). I also explain the relationship of inclusion between them. That is, all naturals are whole numbers, all whole numbers are integers, all integers are rationals, rationals and irrationals are disjoint and their union form the real numbers.