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PlanetMath: Boolean lattice |
 | | Given a set, any collection of subsets that is closed under unions, intersections, and complements is a Boolean algebra. |
| | Boolean rings (with identity, but allowing 0=1) are equivalent to Boolean lattices. |
| | This is version 5 of Boolean lattice, born on 2002-02-24, modified 2007-05-12. |
| planetmath.org /encyclopedia/BooleanAlgebra.html (132 words) |
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