Difference set
= Difference set
{title2=$A-B$}
{wiki}
For subsets $A,B$ of an additive group, their difference set is $A-B=\{a-b:a\in A,b\in B\}$.
= Difference set
{title2=$A-B$}
{wiki}
For subsets $A,B$ of an additive group, their difference set is $A-B=\{a-b:a\in A,b\in B\}$.