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Define ????: ℝ → {0,1} as the characteristic function of ℤ+, the set of positive integers. That is, ????(x) = ????A (x), for the set A of positive integers = n ∈ ℤ+ .
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Define ????: ℝ → {0,1} as the characteristic function of ℤ+, the set of positive integers. That is, ????(x) = ????A (x), for the set A of positive integers = n ∈ ℤ+ .
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Step-by-step explanation: steps explained in attached file
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