selector

Let $S$ be a collection of sets. A selector of $S$ is by definition a set $\{f(R)|R\in S\}$ where $f$ is a choice function on $S$ (that is $f(R)\in R$).

There is a different selector of $S$ for every choice function $f$.

Title	selector
Canonical name	Selector
Date of creation	2013-03-22 16:35:46
Last modified on	2013-03-22 16:35:46
Owner	porton (9363)
Last modified by	porton (9363)
Numerical id	7
Author	porton (9363)
Entry type	Definition
Classification	msc 03E25
Related topic	ChoiceFunction
Related topic	Collection