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<p>it increases the <a href="page.php?w=Turing_degree">Turing degree</a> of the problem . That is, the problem  is not <a href="page.php?w=Turing-reducible">Turing-reducible</a> to . <a href="page.php?w=Post%27s_theorem">Post's theorem</a> establishes a relationship between the Turing jump operator and the <a href="page.php?w=arithmetical_hierarchy">arithmetical hierarchy</a> of sets of natural numbers. Informally, given a problem, the Turing jump returns the set of Turing machines that halt when given access to an oracle that solves that problem.</p><p>
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