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Python Set intersection() Method

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The intersection() method returns a set that contains the similarity between two or more sets.

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Meaning: The returned set contains only items that exist in both sets, or in all sets if the comparison is done with more than two sets.

A = {1, 2, 3, 4}
B = {2, 3, 4, 9}
C = {2, 4, 9 10}
Then,
A∩B = B∩A ={2, 3, 4}
A∩C = C∩A ={2, 4}
B∩C = C∩B ={2, 4, 9}
A∩B∩C = {2, 4}

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Syntax

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set.intersection(set1, set2 ... etc)

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**Return value:**

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**The intersection() function returns a set, which has the intersection of all sets(set1, set2, set3…) with set1.**

It returns a copy of set1 only if no parameter is passed.

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