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edwinbrady's profile
Edwin Brady
Edwin Brady
Edwin Brady
@edwinbrady

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Edwin Brady

@edwinbrady

CompSci Lecturer. Go player. Programming language researcher. Idris hacker. Denies knowledge of Whitespace. He/him. http://tinyurl.com/TypeDD 

St Andrews
eb.host.cs.st-andrews.ac.uk
Joined November 2008

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    1. Martin Odersky‏ @odersky 12 May 2015
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      Replying to @jamesiry

      @jamesiry @BartoszMilewski @ericniebler @Quora What I like about Haskell (and hope to be able to introduce to Scala): it's purity.

      4 replies 29 retweets 39 likes
    2. Yaron Minsky‏ @yminsky 12 May 2015
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      Replying to @odersky

      @odersky How? By adding Haskell-like monadic tracking of effects? Seems tricky to add late in the game.

      2 replies 0 retweets 2 likes
    3. Martin Odersky‏ @odersky 13 May 2015
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      Replying to @yminsky

      @yminsky Monads used directly are the wrong abstraction for effects because they don't commute. See Oleg's arguments: http://lambda-the-ultimate.org/node/4786 

      5 replies 21 retweets 62 likes
    4. Joseph Abrahamson‏ @sdbo 13 May 2015
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      Replying to @odersky

      @odersky @yminsky I fail to understand why people expect effects to commute. They clearly don't.

      2 replies 1 retweet 8 likes
    5. Joseph Abrahamson‏ @sdbo 13 May 2015
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      Replying to @sdbo

      @odersky @yminsky State + NonDet =/= NonDet + State, and I want to be able to talk about each of them both as implementer and user.

      1 reply 1 retweet 6 likes
    6. Eyal Lotem  🏴‏ @EyalL 14 May 2015
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      Replying to @sdbo

      @sdbo Weird thing is that this notion comes from quite bright minds. I've heard it from @edwinbrady too iirc. I must be missing something

      1 reply 0 retweets 1 like
    7. Edwin Brady‏ @edwinbrady 14 May 2015
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      Replying to @EyalL

      @eyall @sdbo You haven't heard from me that effects should commute… it's certainly more complicated than many think.

      2 replies 0 retweets 1 like
    8. Eyal Lotem  🏴‏ @EyalL 15 May 2015
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      Replying to @edwinbrady

      @edwinbrady @sdbo ah sorry, I thought that's what I understood back in IFL13, in a discussion about Monad transformers alternatives.

      1 reply 0 retweets 0 likes
    9. Edwin Brady‏ @edwinbrady 15 May 2015
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      Replying to @EyalL

      @EyalL @sdbo that's a motivation, but Idris style effects can work alongside monad transformers. In fact, Eff is one!

      1 reply 1 retweet 3 likes
    10. Joseph Abrahamson‏ @sdbo 16 May 2015
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      Replying to @edwinbrady

      @edwinbrady @eyall I agree that there's are effects which are well genlzd by Eff, but I feel like it's often presented as "fixing" monads.

      1 reply 0 retweets 0 likes
      Edwin Brady‏ @edwinbrady 16 May 2015
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      Replying to @sdbo

      @sdbo @eyall Not by me. It's another way of doing things which is often less annoying but not as expressive.

      8:32 AM - 16 May 2015
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      • Joseph Abrahamson
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        1. Joseph Abrahamson‏ @sdbo 16 May 2015
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          Replying to @edwinbrady

          @edwinbrady @eyall I appreciate that—and I'll be sure to keep you out of any targets of my whining around Eff advocacy ; )

          0 replies 0 retweets 1 like
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