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<p>An operation of <a href="page.php?w=arity">arity</a>&nbsp;0, or <a href="page.php?w=nullary_operation">nullary operation</a>, is a <a href="page.php?w=constant_%28mathematics%29">constant</a>. The <a href="page.php?w=mixed_product">mixed product</a> is an example of an operation of arity&nbsp;3, also called <a href="page.php?w=ternary_operation">ternary operation</a>.</p>

<p>The four classical operations are addition, subtraction, multiplication, and division. These operations form the foundation of arithmetic and are essential for performing</p><p>
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