Countable set
= Countable set
{wiki}
= Countable
{synonym}
A countable set is a <set> that admits an <injective function> into the <natural numbers>. It is therefore either a <finite set> or a <countably infinite set>.
= Countable set
{wiki}
= Countable
{synonym}
A countable set is a <set> that admits an <injective function> into the <natural numbers>. It is therefore either a <finite set> or a <countably infinite set>.