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lynaghk's profile
Kevin Lynagh
Kevin Lynagh
Kevin Lynagh
@lynaghk

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Kevin Lynagh

@lynaghk

I design and build things. Mostly software, sometimes furniture, and a few small buildings once.

Amsterdam, The Netherlands
kevinlynagh.com
Joined January 2012

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    1. Channing Walton‏ @channingwalton Apr 21
      Replying to @DavidGregory084 @Hillelogram

      Interesting. This is all new to me so I have no idea if it's similar to what daphny is doing.

      1 reply 0 retweets 0 likes
    2. Hillel ∈ NYC (Oct 4-10)‏ @Hillelogram Apr 21
      Replying to @channingwalton @DavidGregory084

      Pretty similar! Most of these work by converting the clauses to SMT statements and then shelling out Z3 or similar to do the heavy lifting.

      1 reply 0 retweets 1 like
    3. Channing Walton‏ @channingwalton Apr 21
      Replying to @Hillelogram @DavidGregory084

      So with these toys I don't need to write QuickCheck style tests?

      1 reply 0 retweets 0 likes
    4. Hillel ∈ NYC (Oct 4-10)‏ @Hillelogram Apr 21
      Replying to @channingwalton @DavidGregory084

      On one hand, you won't need to, since you're formally proving it correct. On the other hand, as you can see by this challenge, proving things are correct is a bag of dicks, so often it's more reasonable and scalable to heavily use Quickcheck

      1 reply 0 retweets 2 likes
    5. Channing Walton‏ @channingwalton Apr 21
      Replying to @Hillelogram @DavidGregory084

      Heh. Fair enough. I need all the help I can get so the more the merrier.

      1 reply 0 retweets 1 like
    6. Hillel ∈ NYC (Oct 4-10)‏ @Hillelogram Apr 21
      Replying to @channingwalton @DavidGregory084

      Have you looked at formal specification at all? It's a great way to cut out bugs in the planning phase, and you can use it with any language. The other correctness technique I really love is checklists, but that's more of a process improvement to code than a tooling one

      1 reply 0 retweets 2 likes
    7. Channing Walton‏ @channingwalton Apr 21
      Replying to @Hillelogram @DavidGregory084

      No I haven't. I'm late to the party ;)

      1 reply 0 retweets 1 like
    8. Hillel ∈ NYC (Oct 4-10)‏ @Hillelogram Apr 21
      Replying to @channingwalton @DavidGregory084

      Some starting links I really like on this (only two of which are mine!): https://www.youtube.com/watch?v=_9B__0S21y8 … http://muratbuffalo.blogspot.com/2018/01/why-you-should-use-modeling-with.html …https://www.hillelwayne.com/post/nix/ 

      2 replies 0 retweets 8 likes
    9. Hillel ∈ NYC (Oct 4-10)‏ @Hillelogram Apr 21
      Replying to @Hillelogram @channingwalton @DavidGregory084

      I feel like I need a good goto link on finite state machines to drop on people. @davidkpiano @lynaghk any ideas?

      3 replies 0 retweets 0 likes
    10. Kevin Lynagh‏ @lynaghk Apr 23
      Replying to @Hillelogram @channingwalton and

      Harel's original paper is quite accessible: http://www.inf.ed.ac.uk/teaching/courses/seoc/2005_2006/resources/statecharts.pdf … Samek's book and libraries are great and comprehensive (esp. for embedded): https://www.state-machine.com/psicc2/  My as-of-yet unnamed interactive tutorial/playground stuff should be out in the next month.

      1 reply 0 retweets 2 likes
      Kevin Lynagh‏ @lynaghk Apr 23
      Replying to @lynaghk @Hillelogram and

      I also gave a talk 3 years ago that gives some history about statecharts, as well as my firm's experience using them as the basis for a mobile app supporting wind turbine maintenance: https://keminglabs.com/talks/#yow2015 

      9:52 PM - 23 Apr 2018
      • 2 Likes
      • I, Frame David K. 🎹
      1 reply 0 retweets 2 likes
        1. David K.  🎹‏ @DavidKPiano Apr 23
          Replying to @lynaghk @Hillelogram and

          I saw it online, really good talk!

          0 replies 0 retweets 1 like
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