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dellamonica

HN member
Joined
Thu, Jan 20, 2022, 9:48 PM UTC
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44
Public activity
40 items

About dellamonica

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Recent public activity

  1. comment
    Comment #48502407

    The point of the AI with respect to checking is to translate a natural language theorem and its proof into the formal system. Most of known math is not formalized because it is ver…

  2. comment
    Comment #48216773

    It is extremely well known. Lots of people have tried to solve it and it stood basically stuck for 80 years. It is getting harder every day to downplay these models. Given its elem…

  3. comment
    Comment #39479053

    The ellipse can be also encoded by just the lengths along each axis and then by a rotation in R^n (which is just a unitary matrix multiplication). So in essence, for the problem in…

  4. comment
    Comment #39475275

    Every ellipse can be encoded by the matrix A (and the geometric concept is generalized to arbitrary dimensions). Not sure I follow the physics analogy though. A unit ball is a spec…

  5. comment
    Comment #39328319

    Yes, if you don't use dotnet and is already used to Unix tooling then it is a tough sell, but otherwise the integration with dotnet is quite good.

  6. comment
    Comment #39328159

    I mean, the entire dotnet is available, you can do anything in PS though obviously that is not always the smart call. It has been very useful to me to use as a REPL on my own C# li…

  7. comment
    Comment #39249649

    What is wrong with PowerShell core? *PS core is the one based on the new versions of dotnet.

  8. comment
    Comment #38600748

    It's rather difficult to provide a good formalization but let me give it a shot. Suppose that mathematicians write papers with pen and paper in a subset of natural language without…

  9. comment
    Comment #38600663

    First of all, thank you for a thorough response. I'll need to take time to read it (and the refs in your other reply) with the care it deserves. Basically I'm talking about the sub…

  10. comment
    Comment #38591460

    No misunderstanding about NP here for sure. As I said, this is about as much of a thesis as Church Turing is about what can be computed. I have no clue about CiC, lean and whatnot.…

  11. comment
    Comment #38590914

    Right, and this is also the current status of handmade mathematics. All we know is that we did not find a proof yet with everything that has been tried. This typically means that a…

  12. comment
    Comment #38590869

    Could you give me a reference? This is not something I'm familiar with. Can you claim that this equivalence proof is not in NP, without requiring this specific encoding? I would be…

  13. comment
    Comment #38581482

    Then in that target language, found by a clever human, you could do the same type of enumeration... My whole point is that humans simply cannot process/create by themselves any tru…

  14. comment
    Comment #38575488

    This is all very interesting but it seems that we're just taking different views on what is the instance size. If it is the length of the theorem statement in some suitable encodin…

  15. comment
    Comment #38574623

    Of course it would, you would enumerate lengths too. If the lengths need to be larger than polynomially bounded then we can be sure it would never be found by a human anyway.

  16. comment
    Comment #38574102

    It doesn't require anything like that. Math proofs are of NP complexity. If you had access to a non deterministic Turing machine you could enumerate all possible proofs of a given …

  17. comment
    Comment #38532704

    Without digging too much, I don't think such an argument could be made by this paper. A non trivial lower bound on a concrete problem in a general computation framework would be a …

  18. comment
    Comment #38524774

    It might be possible to compute whether the start and end States are connected without constructing the actual path. As usual non trivial lower bounds on computation are basically …

  19. comment
    Comment #37336941

    It does though. My gmail account has a dot. For some reason someone with a similar name to mine must have for believed his address was the non dotted version of mine and to this da…

  20. comment
    Comment #36084678

    There has been a push for using Source Generators to move stuff that relies on reflection to compile time code generation. JSON serialization is (mostly) supported in this mode wit…

  21. comment
    Comment #36084575

    It can get really tricky: using reflection you could read a string from any input and create a generic type instantiation that never happens in the source code. How would the code …

  22. comment
    Comment #35452883

    There are lots of techniques that use randomness to show the existence of objects with desired properties. Some of them rely on the "first moment" (expectation) which seems to be w…

  23. comment
    Comment #35109036

    That would make a great Black Mirror episode... and a terrible dystopia if it becomes reality.

  24. story
  25. comment
    Comment #34022509

    I think the basic idea is that the hash has a fairly uniform probability distribution, so knowing the prefix means you can estimate its location in a sorted list. For instance if w…