DEF-DJ. Disjoint Sets.
$X$ and $Y$ are disjoint, if $X\cap Y=\varnothing$.
The sets from $X$ are disjoint, if $\bigcap X=\varnothing$.
Not disjoint sets are called joint or overlapping.
DEF-DJ. Disjoint Sets.
$X$ and $Y$ are disjoint, if $X\cap Y=\varnothing$.
The sets from $X$ are disjoint, if $\bigcap X=\varnothing$.
Not disjoint sets are called joint or overlapping.