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<p>is sometimes called the <a href="page.php?w=Cantor_algebra">Cantor algebra</a>.</p>

<p><big> Non-complete Boolean algebras </big></p>
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*The algebra of all subsets of an infinite set that are finite or have finite complement is a Boolean algebra but is not complete.<br/>
*The algebra of all measurable subsets of a measure space is a ?<sub>1</sub>-complete Boolean algebra, but is not usually complete.<br/>
*Another example of a Boolean algebra that is not complete is the Boolean algebra P(?) of all sets of <a href="page.php?w=natural_number">natural number</a>s,</p><p>
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