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fossilesque@mander.xyzM to Science Memes@mander.xyzEnglish · 25 days ago

s p h e r e

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fossilesque@mander.xyzM to Science Memes@mander.xyzEnglish · 25 days ago
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  • lauha@lemmy.world
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    19    ·
    25 days ago

    Explanation?

    • dont@lemmy.world
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      3      ·
      24 days ago

      On what level? A proof? Or just the meaning of the words?

      • lauha@lemmy.world
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        7        ·
        24 days ago

        What is contractible in mathematics? Wikipedia had article on contractible spaces but that was way beyond be.

    • Kogasa@programming.dev
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      24 days ago

      https://en.wikipedia.org/wiki/Contractibility_of_unit_sphere_in_Hilbert_space

      I can offer no ELI5 but here’s the context

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