If \( P(A) \) denotes the power set of \( A \) and \( A \) is the v...

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If \( P(A) \) denotes the power set of \( A \) and \( A \) is the void set, then what is number of elements in \( P\{P\{P\{P(A)\}\}\} \) ?
P
(a) 0
(b) 1
(c) 4
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