# Dirac, Gabriel

## Dirac's Conjecture ★★

Author(s): Dirac

\begin{conjecture} For every set $P$ of $n$ points in the plane, not all collinear, there is a point in $P$ contained in at least $\frac{n}{2}-c$ lines determined by $P$, for some constant $c$. \end{conjecture}

Keywords: point set