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GRE数学重要知识点：交集并集
【#GRE# 导语】宝剑锋从磨砺出，梅花香自苦寒来。坚持备考的人生，很积极，很宝贵，很励志。冲吧，努力吧！以下为无忧考网整理的“GRE数学重要知识点：交集并集 第1页 /总页数 2 页
GRE数学重要知识点：交集并集
【#GRE# 导语】宝剑锋从磨砺出，梅花香自苦寒来。坚持备考的人生，很积极，很宝贵，很励志。冲吧，努力吧！以下为无忧考网整理的“GRE数学重要知识点：交集并集”，欢迎阅读参考！更多相关讯息请关注无忧考网！
Intersection of Sets
Intersection of two sets is another set with only the members that are in both sets. If the two sets do not share any common member, the intersection is the empty set with no member.
Example:
Intersection of {1,2,3} and {2,3,5} is the set {2,3}.
Intersection of the set with all primes and the set with all even numbers is the set {2} since only 2 is both even and prime.
Intersection of {1,2,3} and {4,5,6} is the empty set {}.
Remember:
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Intersection contains only the common members.
Two sets are disjoi