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blockspins's profile
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@blockspins

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bgc

@blockspins

readin and writin

Joined January 2010

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    1. sclv‏ @sclv 12 Oct 2019
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      Replying to @jeremyjkun @littmath and

      well you have someone read it, for one. and now they just have to verify that the definitions correspond to what is claimed. hales' current project for a "library of math" includes a notion of reviewers and certifications that the formal statements correspond to those written.

      0 replies 0 retweets 1 like
    2. Jeremy Kun‏ @jeremyjkun 12 Oct 2019
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      Replying to @littmath @sclv and

      Buzzard said in his talk it took him 8 months and 30k lines of code to define one particular object he was interested in.

      2 replies 0 retweets 2 likes
    3. The Xena Project‏ @XenaProject 13 Oct 2019
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      Replying to @littmath @jeremyjkun and

      So to "check your work", because we can't prove BSD, will involve checking one example. This will involve formalising algorithms which compute the rank of an ell curve + proving that these algorithms are correct, and then analytically continuing the L-fn etc etc

      0 replies 0 retweets 0 likes
    4. Jeremy Kun‏ @jeremyjkun 13 Oct 2019
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      Replying to @littmath @XenaProject and

      Yes, I'd be interested to hear about how you go about convincing someone who hasn't worked in Lean before that some object they understand well, but which requires a lot of work to formalize, is formalized correctly in that particular instance.

      1 reply 0 retweets 0 likes
    5. Jeremy Kun‏ @jeremyjkun 13 Oct 2019
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      Replying to @jeremyjkun @littmath and

      Or even someone that has worked in Lean before :)

      1 reply 0 retweets 0 likes
      bgc‏ @blockspins 13 Oct 2019
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      Replying to @jeremyjkun @littmath and

      speaking as a relative noob in Lean, it is generally not difficult to understand the statements of definitions / theorems in Lean; so provided you trust / understand the definitions that you see used (in my opinion no more problematic than doing so in "informal" math) ...

      8:52 AM - 13 Oct 2019
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        1. bgc‏ @blockspins 13 Oct 2019
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          Replying to @blockspins @jeremyjkun and

          it is not too hard to see whether what's *stated* is what you have in mind. (Though just as in informal math, this may require chasing down some dependencies...) Understanding what precisely is going on in the code in the *proofs* is of course much harder.

          0 replies 0 retweets 1 like
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