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Universal Set

How cardinali...

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How cardinality of a proper subset is=2^n-1

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Q. If A is a proper subset of B, then the cardinal number of A is always ____ to the cardinal number of B.

Q. If A = {x: x = 2n+1, n ∈ N and 3 ≤ n ≤ 9},then the cardinality of A is .

State whether the following statement is True or False

If n is the number of elements of a set, the number of proper subsets is

2^{n} - 1

Q. If A = {x: x = 2n+1, n ∈ N and 3 ≤ n ≤ 9},then the cardinality of A is .

A

n

C

be a collection of distinct subsets of

A

such that for any two subsets

S_{1}

S_{2}

C

S_{1} \subset S_{2}

S_{2} \subset S_{1}

. What is the maximum cardinality of

C

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