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Flashcards - Sets & Relations in Math

Flashcards - Sets & Relations in Math
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equivalence relation
In mathematics, an equivalence relation is a binary relation that is at the same time a reflexive relation, a symmetric relation and a transitive relation
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equivalence relation
In mathematics, an equivalence relation is a binary relation that is at the same time a reflexive relation, a symmetric relation and a transitive relation
union of sets
In set theory, the union of a collection of sets is the set of all distinct elements in the collection
empty set
In mathematics, and more specifically set theory, the empty set is the unique set having no elements; its size or cardinality is zero

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