" 6.Show that: "n[P{P{P(phi)}}]=4

Show that n{P{P(P(varphi))}}=4

Show that n{P{P(P(varphi))}}=4.

The cardinality of the set P{P[P(phi)]} is

Let P (n) denote the statement : “ 2^n gen ! ". Show that P(1), P(2) and P(3) are true but P(4) is not true.

Let P(n) denote the statement: 2^(n)ge n! .Show that P(1),P(2),P(3) are true butP(4) is not true.

Verify that |P(phi)|=2^@

Prove that for a null set phi, n{P(P(phi))}=2 .

Show that ""^(n)P_(n)=2""^(n)P_(n-2)

Show that ""^(n)P_(n)=2""^(n)P_(n-2)

Show that ""^(n)P_(n)=""^(n)P_(n-1) for all natural numbers n.