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<a accesskey="1" href="page.php?w=inverse_function_theorem&amp;p=4">1.Previous</a><br />
<a accesskey="3" href="page.php?w=inverse_function_theorem&amp;p=6">3.Next</a>
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<p>is to prove a <a href="page.php?w=fixed_point_theorem">fixed point theorem</a> using the <a href="page.php?w=contraction_mapping_theorem">contraction mapping theorem</a>.</p>

<p><big>Statements</big></p>
<p><big> One variable </big></p>
<p>The inverse function theorem is not often stated separately for one variable, because a stronger result is true: if a real-valued function of a single real variable has a derivative which is nonzero on an interval, then the function has an inverse throughout the interval.  More precisely, suppose that  is a real-valued differentiable</p><p>
<a accesskey="1" href="page.php?w=inverse_function_theorem&amp;p=4">1.Previous</a><br />
<a accesskey="3" href="page.php?w=inverse_function_theorem&amp;p=6">3.Next</a>
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