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Mathematics, 09.04.2021 20:50 DangeRz

Let A and B be sets with cardinal numbers n(A)=a and n(B)=b, respectively decide whether the statement is true or false n(AuB)+n(AnB)=n(A)+n(B)

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Let A and B be sets with cardinal numbers n(A)=a and n(B)=b, respectively decide whether the stateme...
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