Forum Questions About Olympiads We figured out you may have some general questions about math olympiads. Although this website is not affiliated with any math olympiad, and although we can’t provide official answers to any of the questions, we have very skillful and creative visitors who may be able to help. Of course, the validity of any advice you get from them (and us) is highly questionable. Posted on: 02/03/2012 at 22:02:29     Posted by maticivan Sir, I request you to post a pdf on the topic "Combinatorial Geometry".It would help a lot. Thanks, in advance.Posted on: 06/05/2012 at 07:06:27     Posted by Dladem about IMOSL $$2009/11$$ (see list of errors): first, it seems to prove $$Q \ge m * 2^{m+2}.$$ So $$|F|> \sum F_i$$ meant we can’t equality (look to $$m=1$$ for a trivial observation for this). hence we will have to make a stronger argument for this, anyone who can help to make this problem will be clear? Posted on: 06/07/2012 at 13:06:43     Posted by Stijn C 2005-2013 IMOmath.com | imomath"at"gmail.com | Math rendered by MathJax Home | Olympiads | Book | Training | IMO Results | Forum | Links | About | Contact us