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Mathematics, 14.09.2019 06:30, runaway173
Let f: x --> y be a function. (a) prove the following: if a, b c x are sabseits, then f(aub) = f(a)us(b). (b) prove the following: if a, b c x are subsets then f(an b) s f(a)n f(b). (c) give an explicit example of a function : x y and subsets a, b c x which demonstrate that the equality f(anb) = f(a)n f(b) need not hold.
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Let f: x --> y be a function. (a) prove the following: if a, b c x are sabseits, then f(aub) =...
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