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	<title>Logtalk control construct: {}/1</title>
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<div class="top-right">Control construct: {}/1</div>
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<h2 class="codenp">{}/1<span id="control_external1"/></h2>


<h4>Description</h4>

<pre>{Goal}</pre>
<p>
	Calls external Prolog code. Can be used to bypass the Logtalk preprocessor/compiler.
</p>

<h4>Template and modes</h4>

<pre>{+callable}</pre>

<h4>Errors</h4>

<blockquote>
<p>
	(none)
</p>
</blockquote>

<h4>Examples</h4>

<pre>N1/D1 &lt; N2/D2 :-
    {N1*D2 &lt; N2*D1}.</pre>

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