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Intersection and Union
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Main Concept
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Given two intervals, the two major relations between them are their union and their intersection.
The union of two sets or intervals,  and  , is the set of elements which are in either set. This is denoted as  .
The intersection of the two intervals, is the set of elements which are in both set. This is denoted as  .
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Click or drag to place two intervals on the number line. Choose whether to include, exclude, or set your end points to  . Use the check boxes on the right to show the two intervals, their union, and their intersection.
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Interval A
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Left End Point:
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Right End Point:
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Interval B
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Left End Point:
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Right End Point:
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