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Let f: S-T be a function where S, T sets. Let UST be given. Prove that f^-1(U^c)=(f^-1(U))^c.
Let f: S-T be a function where S, T sets. Let UST be given. Prove that f^-1(U^c)=(f^-1(U))^c.
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Toprovet f 1 U c f 1 U c we need to show that an element x is in f 1 U C ...
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An Introduction to Analysis
Authors: William R. Wade
4th edition
132296381, 978-0132296380
