Set Theory - The in operator

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The in relationship indicates that an object belongs to a set (equivalently, that the set contains the object).


<MATH> \Large \in </MATH>


<MATH>\Large 1 \in \{1,2,3,4\}</MATH>

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The cartesian product is a set operator between two set A and B that produces a set of all pairs (a, b) where: (ie a in A) and (ie b in B) See See
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The relationships between set structure is: given by a mathematical function and is described by the set operators. You can visualize them with venn diagram.

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