Chapter 1: Problem 72
Let \(X=\\{1,2\\}, Y=\\{a\\},\) and \(Z=\\{\alpha, \beta\\} .\) List the elements of each set. $$ X \times Y \times Z $$
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Chapter 1: Problem 72
Let \(X=\\{1,2\\}, Y=\\{a\\},\) and \(Z=\\{\alpha, \beta\\} .\) List the elements of each set. $$ X \times Y \times Z $$
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For each pair of propositions \(P\) and \(Q\) . State whether or not \(P \equiv Q\). $$ P=(p \rightarrow q) \rightarrow r, Q=p \rightarrow(q \rightarrow r) $$
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Verify the second of De Morgan's laws, \(\neg(p \wedge q) \equiv \neg p \vee \neg q\).
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