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neap range
Fishing on the coast is difficult today because it's a neap range.
power set (set of all subsets of a set)
A power set is a set consisting of all subsets of a set.
collective noun
He is learning how to use collective nouns.
(mathematics) empty set
In mathematics, an empty set refers to a set that does not contain any elements.
(set theory) intersection
In math class, we learned about the intersection.
(set theory) union
In math class, we learned about the concept of union sets.
communal letterbox
There is a communal letterbox in our apartment.
(set theory) set operation
Set operation is one of the basic concepts in mathematics.
(set theory) absolute complement
The concept of the absolute complement plays an important role in set theory.
In math class, we learned about the concept of union.
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