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jojo3000

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  1. story
  2. comment
    Comment #14751045

    Sorry, I was unclear. I meant that most LCF style theorem provers only have one theorem datatype to carry proof information.

  3. comment
    Comment #14747395

    Tensors are a good example: In a proof you might want to do induction over the dimensions of a tensor. This means your type of tensors needs to contain all tensors of all dimension…

  4. comment
    Comment #14747147

    The memory consumption will surely be better, as HOL or Isabelle will only store the fact that a theorem was proven, but not how. But then Lean can store the proofs and has two ind…

  5. comment
    Comment #14747026

    But your "intermediate specifications" are not part of your specification! The specification says that the result is a sorted version of the input. It does not care about the induc…

  6. comment
    Comment #14746953

    Lean is LCF style in the sense that there is a small kernel, and all proofs written by the user and generated by the automation are checked by this kernel. This kernel (i.e. type c…

  7. comment
    Comment #12956420

    This is orthogonal. But first, there are still buffer overflows, null pointer accesses & segmentation faults, etc. in the kernel happening. And this is a big problem! But lets assu…

  8. comment
    Comment #12804738

    There was also a presentation on Bus1 on the systemd.conf 2016: https://www.youtube.com/watch?v=6zN0b6BfgLY

  9. comment
    Comment #11580073

    If behind the USB port is some (writeable) data storage (for PDF manuals etc) this is quite possible.

  10. comment
    Comment #9901963

    Which is very unfortunately. It would be nice to have Hurd running on seL4!

  11. comment
    Comment #9617067

    Even defining the real numbers is already quite involved, for example in Isabelle/HOL it is introduced as quotient over Cauchy sequences: http://isabelle.in.tum.de/dist/library/HOL…

  12. comment
    Comment #8375599

    In interactive theorem proving HOL4 ( http://hol.sourceforge.net/ ) and Isabelle ( http://isabelle.in.tum.de/ ) are written in SML and are actively developed.

  13. comment
    Comment #8375536

    Some of his arguments look a little bit botched. For example: > Fallacy #1: "Systemd is multiple binaries, therefore it is not monolithic" Well following Wikipedia ( http://en.wiki…