is the result after doing intersection on 2 or more sets. It contains the elements which are common to all the sets on which intersection were done.
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Given two or more sets there is a set which is their union and a set which is there intersection. But, there is no such thing as a "union intersection set", as required for the answer to the question.
If B = {10111213} and C = {1213} then their intersection is the empty set, {}.The union of A with an empty set is set A.
In set theory, the symbol of intersection is ∩, like an upside down U.
The main set operations are: union, intersection and complement.
The intersection of two or more mathematical objects is the set of all points that are common to all of them. In set theory, that would be the elements in common. In geometry, it would be the set of all points in common. For example, the intersection of two different planes is a line; the intersection of a plane and a cone are the conic sections: circle, ellipse, parabola and hyperbola.