１＋１＝２

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」。テーマは「１＋１＝２」。本当に１＋１＝２は正しいのか？数学者たちの苦悩と意外な結末とは！？ 当たり前だと思える事柄でも数学は厳密に証明しなくてはならない。とことん基礎にさかのぼって根拠を固めなくては。１９世紀以降、そんな問題意識に目覚めた数学者たちは、１＋１＝２は正しいのかにさえ疑いの目をむけ、完全無欠な数学を目指し懸命に格闘した。だがその後、数学の危機とも言える不気味なパラドックスに気づいてしまう。はたして数学は完全無欠な学問になるのか？　パンサー尾形による「２＋３＝５の証明」も必見！

"Mathematics without laughing" in which Takahiro Ogata explains the difficult problems of mathematics seriously. The theme is “1+1=2”. Is 1+1=2 really true? What about the suffering and unexpected endings of mathematicians? Even if it seems obvious, mathematics must be strictly proved. You have to go back to the basics and build up your base. From the 19th century onwards, mathematicians who became aware of this problem, even doubted whether 1+1=2 was correct, and struggled to achieve complete mathematics. But then he discovers a nemaraezable paradox that can be said to be a mathematical crisis. Will mathematics become a completely uneducated discipline?　"2 + 3 = 5 proof" by Panther Ogata is also a must-see!