• Sop@lemmy.blahaj.zone
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        4 months ago

        Principia mathematica should not be used as source book for any actual mathematics because it’s an outdated and flawed attempt at formalising mathematics.

        Axiomatic set theory provides a better framework for elementary problems such as proving 1+1=2.

      • Kogasa@programming.dev
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        4 months ago

        It’s not a 360 page proof, it just appears that many pages into the book. That’s the whole proof.

            • Klear@lemmy.world
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              4 months ago

              It’s a reference to Fermat’s Last Theorem.

              Tl;dr is that a legendary mathematician wrote in a margin of a book that he’s got a proof of a particular proposition, but that the proof is too long to fit into said margin. That was around the year 1637. A proof was finally found in 1994.