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<head><title>^* -- a unary postfix operator, used for indicating pullback maps</title>
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<div><h1>^* -- a unary postfix operator, used for indicating pullback maps</h1>
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<div class="waystouse"><h2>For the programmer</h2>
<p>The object <a href="_^_st.html" title="a unary postfix operator, used for indicating pullback maps">^*</a> is <span>a <a href="___Keyword.html">keyword</a></span>.</p>
<div><div><p>This operator may be used as a postfix unary operator in an expression like <tt>x ^*</tt>. The user may <a href="__co_eq.html">install a method</a> for handling such expressions with code such as</p>
<pre> X ^* := (x) -> ...</pre>
<p>where <tt>X</tt> is the class of <tt>x</tt>.</p>
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