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Chapter 2 - Sets

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Set Distributive Laws


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Sets - Distributive Laws - Contents

The distributive laws establish the rules of taking unions and intersections of sets. They apply to all sets including the set of real numbers.

Sets - Distributive Laws - Definitions

Where A, B and C are sets of numbers:

A U (B C) = (A U B) (A U C)
A
union (B intersection C) equals (A union B) intersection (A union C)
This law states that taking the union of a set to the intersection of two other sets is the same as taking the union of the original set and both the other two sets separately, and then taking the intersection of the results.

A (B U C) = (A B) U (A C)
A
intersection (B union C) equals (A intersection B) union (A intersection C)
This law states that taking the intersection of a set to the union of two other sets is the same as taking the intersection of the original set and both the other two sets separately, and then taking the union of the results.

Sets - Sections - Chapters
1 - Set Definition 2 - Universal Set 3 - Power Set
4 - Set Union 5 - Set Intersection 6 - Set Complement
7 - Set Identity Laws 8 - Commutative Laws 9 - Associative Laws
10 - Distributive Laws   11 - DeMorgan's Laws

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