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<p>i.e. the set of all subsets of , then there is no surjective function from  to . A proof is given in the article <a href="page.php?w=Cantor%27s_theorem">Cantor's theorem</a>. As an immediate consequence of this and the Basic Theorem above we have:</p>

<p>For an elaboration of this result see <a href="page.php?w=Cantor%27s_diagonal_argument">Cantor's diagonal argument</a>.</p>

<p>The set of <a href="page.php?w=real_number">real number</a>s is uncountable, and so is the set of all infinite <a href="page.php?w=sequence">sequence</a>s of natural</p><p>
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