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<head><title>isSubface -- Checks whether a face is a subface of another face.</title>
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<div><h1>isSubface -- Checks whether a face is a subface of another face.</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>isSubface(F,G)</tt></div>
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<li><div class="single">Inputs:<ul><li><span><tt>F</tt>, <span>a <a href="___Face.html">face</a></span></span></li>
<li><span><tt>G</tt>, <span>a <a href="___Face.html">face</a></span></span></li>
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<li><div class="single">Outputs:<ul><li><span><span>a <a href="../../Macaulay2Doc/html/___Boolean.html">Boolean value</a></span></span></li>
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<div class="single"><h2>Description</h2>
<div><div>Checks whether F is a subface of G.</div>
<table class="examples"><tr><td><pre>i1 : R=QQ[x_0..x_4];</pre>
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<tr><td><pre>i2 : C=simplex R;</pre>
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<tr><td><pre>i3 : G=C.fc_3_0
o3 = x x x x
0 1 2 3
o3 : face with 4 vertices</pre>
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<tr><td><pre>i4 : F=C.fc_2_0
o4 = x x x
0 1 2
o4 : face with 3 vertices</pre>
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<tr><td><pre>i5 : H=C.fc_3_3
o5 = x x x x
0 2 3 4
o5 : face with 4 vertices</pre>
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<tr><td><pre>i6 : isSubface(F,G)
o6 = true</pre>
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<tr><td><pre>i7 : isSubface(F,H)
o7 = false</pre>
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<div class="waystouse"><h2>Ways to use <tt>isSubface</tt> :</h2>
<ul><li>isSubface(Face,Face)</li>
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