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<head><title>isRing -- whether something is a ring</title>
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<div><h1>isRing -- whether something is a ring</h1>
<div class="single"><h2>Synopsis</h2>
<ul><li><div class="list"><dl class="element"><dt class="heading">Usage: </dt><dd class="value"><div><tt>isRing R</tt></div>
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<li><div class="single">Inputs:<ul><li><span><tt>R</tt>, <span>a <a href="___Thing.html">thing</a></span></span></li>
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<li><div class="single">Outputs:<ul><li><span><span>a <a href="___Boolean.html">Boolean value</a></span>, <a href="_true.html" title="">true</a> if <tt>R</tt> is a <a href="___Ring.html">ring</a> and <a href="_false.html" title="">false</a> otherwise</span></li>
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<div class="single"><h2>Description</h2>
<div><table class="examples"><tr><td><pre>i1 : isRing QQ
o1 = true</pre>
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<tr><td><pre>i2 : R = QQ[x,y];</pre>
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<tr><td><pre>i3 : isRing(R)
o3 = true</pre>
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<tr><td><pre>i4 : isRing(R^1)
o4 = false</pre>
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<tr><td><pre>i5 : isRing(GF(2,3)[x,dx, WeylAlgebra => {x => dx}])
o5 = true</pre>
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<div class="waystouse"><h2>Ways to use <tt>isRing</tt> :</h2>
<ul><li>isRing(Ring)</li>
<li>isRing(Thing)</li>
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