Metadata aliases: [] shorthands: {} created: 2022-11-13 14:30:47 modified: 2022-11-13 14:36:46 Let be a set and let be a function such that where is any set viewed as an index set. Then is an I-indexed family of elements of , for short, family.
aliases: [] shorthands: {} created: 2022-11-13 14:30:47 modified: 2022-11-13 14:36:46
Since the function is determined by its graph
The family can be viewed as the set of pairs .
The usual simple notation is just