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<p>serves as the identity element for joins.<br/>
* Given a positive integer n, the set of all positive <a href="page.php?w=divisor">divisor</a>s of n forms a distributive lattice, again with the greatest common divisor as meet and the least common multiple as join. This is a Boolean algebra <a href="page.php?w=if_and_only_if">if and only if</a> n is <a href="page.php?w=Square-free_integer">square-free</a>.<br/>
* A <a href="page.php?w=Riesz_space">lattice-ordered vector space</a> is a distributive lattice.<br/>
*<a href="page.php?w=Young%27s_lattice">Young's lattice</a></p><p>
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