Mathematics, 22.05.2021 20:30 adrianayepez8
Let X be a set. If A X is a subset of X the characteristic function of A is the function x- (0,11 given by xA(ar) 0 if z E A A. R if 1 Let A and B be two subsets of X. Prove that (a) XAnB XAXB
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Let X be a set. If A X is a subset of X the characteristic function of A is the function x- (0,11 gi...
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