Feeds:
Posts
This post marks the official opening of the mini-polymath3 project to solve a problem from the 2011 IMO.  I have decided to use Q2, in part to see how the polymath format would cope with a more geometrically themed problem. Problem 2.  Let $S$ be a finite set of at least two points in the plane. Assume that no three points of $S$ are collinear. A windmill is a process that starts with a line $ell$ going through a single point \$ … Read More