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Stamets@lemmy.dbzer0.com to Science Memes@mander.xyzEnglish · 6 months ago

I'm too stupid for this

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I'm too stupid for this

Stamets@lemmy.dbzer0.com to Science Memes@mander.xyzEnglish · 6 months ago
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  • Septimaeus
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    6 months ago

    Cropped image of a textbook page with an anecdote which reads “One day Shizuo Kakutani (1911- ) was teaching a class at Yale. He wrote down a lemma on the blackboard and announced that the proof was obvi-ous. One student timidly raised his hand and said that it wasn't obvious to him. Could Kakutani explain? After several moments' thought, Kakutani realized that he could not himself prove the lemma. He apologized, and said that he would report back at their next class meeting. After class, Kakutani went straight to his office. He labored for quite a time and found that he could not prove the pesky lemma. He skipped lunch and went to the library to track down the lemma. After much work, he finally found the original paper. The lemma was stated clearly and suc-cinctly. For the proof, the author had written, ‘Exercise for the reader.’ The author of this 1941 paper was Kakutani.”

    Classic anecdote of the missing proof for Shizuo Kakutani’s lemma.

    • ThatGuy46475@lemmy.world
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      6 months ago

      Reminds me of studying my notes in school

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