# Category:Definitions/Indexed Families

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This category contains definitions related to Indexed Families.
Related results can be found in Category:Indexed Families.

The codomain $S$ consisting of the terms $\left \langle {x_i} \right \rangle_{i \mathop \in I}$, along with the indexing function $x$ itself, is called a family of elements of $S$ indexed by $I$.