Mathematical Proofs of Two Conjectures: The Four Color Problem and The Uniquely 4-colorable Planar Graph · HackerPapers discussionshttps://hackerpaper.kaipfister.de/p/0911.1587/Collected HN comments and submissions linking this paper.enMon, 02 Nov 2026 11:16:22 GMTMathematical Proofs of Two Conjectures: The Four Color Problem and The Uniquely 4-colorable Planar Graph — HN submissionhttps://news.ycombinator.com/item?id=939047urn:hackerpapers:submission:0911.1587:939047Thu, 12 Nov 2009 23:55:19 GMT<p>Four color problem finally proved without a computer?</p><p></p><p>1 point; 2 discussion replies on HN. <a href="https://hackerpaper.kaipfister.de/p/0911.1587/">Paper and source history</a>. A submission is not an endorsement.</p>math.GM