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Let a and B Be Sets with Cardinal Numbers, N(A)= n(AB)=n(BA)n ( A \cap B ) = n ( B \cap A )

question 192

True/False

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(AB)=n(BA)n ( A \cap B ) = n ( B \cap A )


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