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<p>It has the property that .</p>

<p>Its magnitude is related to the angle  between  and  by the identity</p>

<p>The space and product form an <a href="page.php?w=algebra_over_a_field">algebra over a field</a>, which is not <a href="page.php?w=commutative">commutative</a> nor <a href="page.php?w=associative">associative</a>, but is a <a href="page.php?w=Lie_algebra">Lie algebra</a> with the cross product being the Lie bracket. Specifically, the space together with the product,  is <a href="page.php?w=isomorphic">isomorphic</a> to the <a href="page.php?w=3D_rotation_group">Lie algebra of three-dimensional rotations</a>,</p><p>
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