if A is nonempty subset of a linear space, then the \(\hspace{1.0cm}\) of all convex sets containing A gives you the convex hull of A denoted by co A.

if A is nonempty subset of a linear space, then the \(\hspace{1.0cm}\) of all convex sets containing A gives you the convex hull of A denoted by co A.

universal

complement

union

—>> intersection