# 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 Selector 2013-03-22 16:35:46 2013-03-22 16:35:46 porton (9363) porton (9363) 7 porton (9363) Definition msc 03E25 ChoiceFunction Collection