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Mathematical objects '''intersect''' when they have something in common. For example, the sets {1,2,3,4} and {2,4,6} intersect as {2,4}.
 
Mathematical objects '''intersect''' when they have something in common. For example, the sets {1,2,3,4} and {2,4,6} intersect as {2,4}.
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For two sets A and B, their '''intersection''' is written as A∩B and is formally defined as A∩B = {x|xϵA AND xϵB}.
    
From geometry we have another example. [[Euclid]] postulated that:
 
From geometry we have another example. [[Euclid]] postulated that:

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