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<h2><code><a class="back" title="Return to index" href="../index.html#to_super1">^^/1</a></code></h2>
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<h4>Description</h4>

<blockquote>
<pre>
^^Predicate
</pre>
<p>
	Calls a redefined/inherited definition for a message. Normally only used in the body of a predicate definition for the message. Predicate should match a public or protected predicate of <a class="glossary" title="Go to glossary definition" href="../../glossary.html#self">self</a> or be within the scope of <a class="glossary" title="Go to glossary definition" href="../../glossary.html#this">this</a>.
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<h4>Template and modes</h4>

<blockquote>
<pre>
^^+message
</pre>
</blockquote>

<h3>Errors</h3>

<blockquote>
	<dl>
		<dt>Predicate is a variable:</dt>
			<dd><code>instantiation_error</code></dd>
		<dt>Predicate is declared private:</dt>
			<dd><code>permission_error(access, private_predicate, Predicate)</code></dd>
		<dt>Predicate is not declared:</dt>
			<dd><code>existence_error(predicate_declaration, Predicate)</code></dd>
		<dt>Container of the inherited predicate definition is the same object that contains the <code>^^/1</code> call:</dt>
			<dd><code>endless_loop(Predicate)</code></dd>
	</dl>
</blockquote>

<h4>Examples</h4>

<blockquote>
<pre>
init :-
        assertz(counter(0)),
        ^^init.
</pre>
</blockquote>

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Last updated on: July 4, 2000
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