5.How can you proof a proposition in the form of ?x P(x)
is NOT true.
6.a) Briefly...
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Advance Math
5.How can you proof a proposition in the form of ?x P(x)is NOT true.
6.a) Briefly explain what does it mean to say Bis a subset of A? What is the procedure to prove that? b) How many subsets of A are there, if |A| = n ? c) Define an arbitrary set A (with |A|=4), list all the elements ofthe power set of A. (P(A))
3. Briefly explain how you can prove that two sets areequal.
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5 x Px is NOT true means there exists aleast one x forwhich Px is not truex Px for example we say that Px x iseven and not prime Then here x Px is not
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