パンサー尾形貴弘が数学の難問を大真面目に解説する「笑わない数学」。今回は「四色問題」の証明に挑む！地図の塗り分け問題に秘められた、数学者たちのいわくつきの物語。
どんな地図でも四色で塗り分けることはできるのか？ １９世紀のロンドンで生まれたこの「四色問題」は、話は簡単に理解できるのに、どんな地図の場合でも正しい、という証明は天才数学者たちにもできなかった。そのあと１世紀、挑戦と失敗が続き、数学者たちは次第に恐れをなす。そして登場した最終的な証明方法は、喝采と同時に、ある物議をかもすことに…。いわくつきのこの難問の証明に、パンサー尾形が３０分で挑む！
Panther Takahiro Ogata explains difficult math problems in a very serious manner in "Math without Laughing". This time, he tries to prove the "Four Color Problem"! The story behind the map coloring problem is a legendary tale of mathematicians. Can any map be painted in four colors? This "four-color problem," which originated in 19th century London, was easy to understand. However, even genius mathematicians could not prove that it was correct for any map. For the next century, after a succession of attempts and failures, mathematicians became increasingly intimidated. The final proof was met with both applause and controversy. Panther Ogata takes on the challenge of proving this notoriously difficult problem in 30 minutes!
