Extreme point
= Extreme point
{wiki}
An extreme point of a convex set $C$ is a point $x\in C$ for which
$$
x=(1-t)y+tz,\qquad y,z\in C,\quad0<t<1
$$
implies $x=y=z$.
= Extreme point
{wiki}
An extreme point of a convex set $C$ is a point $x\in C$ for which
$$
x=(1-t)y+tz,\qquad y,z\in C,\quad0<t<1
$$
implies $x=y=z$.