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    Onto functions

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    Let P be the power set of {a,b,c}. A function: f: P -> Z follows: For A in P, f(A) = the number of elements in A. Is f one-to-one? Prove or disprove. Is f onto? Prove or disprove.

    © BrainMass Inc. brainmass.com March 6, 2023, 12:49 pm ad1c9bdddf
    https://brainmass.com/math/graphs-and-functions/22610

    Solution Summary

    This is a proof regarding the number of elements in a set.

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