Product set
= Product set
{title2=$A\cdot B$}
The product set of two sets of real numbers is $A\cdot B=\{ab:a\in A,b\in B\}$. It is a multiplicative counterpart of a <sumset>, not the <Cartesian product> $A\times B$.
= Product set
{title2=$A\cdot B$}
The product set of two sets of real numbers is $A\cdot B=\{ab:a\in A,b\in B\}$. It is a multiplicative counterpart of a <sumset>, not the <Cartesian product> $A\times B$.