[Haskell-cafe] Re: ANNOUNCE zeno 0.1.0

2010-11-13 Thread Petr Pudlak
Hi Will, I was wondering, Zeno capable of proving just equational statements, or is it able to prove more general statements about programs? In particular, it would be interesting if Zeno would be able to prove that a function is total by verifying that it uses only structural

[Haskell-cafe] cabal update error

2010-11-13 Thread Daniel Díaz
Hi all, I just installed the Haskell Platform, and when I try cabal update, I have the following output: Downloading the latest package list from hackage.haskell.org cabal: failed This error does not give me information about what is wrong. Has anyone had this error before? I would

Re: [Haskell-cafe] cabal update error

2010-11-13 Thread Ivan Lazar Miljenovic
On 13 November 2010 19:48, Daniel Díaz danield...@asofilak.es wrote: Hi all, I just installed the Haskell Platform, and when I try cabal update, I have the following output: Downloading the latest package list from hackage.haskell.org cabal: failed This error does not give me information

Re: [Haskell-cafe] cabal update error

2010-11-13 Thread Daniel Díaz
El Sab, 13 de Noviembre de 2010, 10:33 am, Ivan Lazar Miljenovic escribió: On 13 November 2010 19:48, Daniel Díaz danield...@asofilak.es wrote: Hi all, I just installed the Haskell Platform, and when I try cabal update, I have the following output: Downloading the latest package list from

Re: [Haskell-cafe] Re: ANNOUNCE zeno 0.1.0

2010-11-13 Thread Luke Palmer
I guess I'm not on the list that received the original announce. But I have to say, I played with the demo ( http://www.doc.ic.ac.uk/~ws506/tryzeno/ ). Wow! I am delighted and impressed, and I think this is a huge step forward. Great work! Luke On Sat, Nov 13, 2010 at 1:31 AM, Petr Pudlak

Re: [Haskell-cafe] cabal update error

2010-11-13 Thread Ross Paterson
On Sat, Nov 13, 2010 at 08:33:18PM +1100, Ivan Lazar Miljenovic wrote: I would guess that it's related to http://www.reddit.com/r/haskell/comments/e5db7/alert_hackage_downtime_tomorrow_0600_1200_pst/ That would be 14:00 - 20:00 UTC, wouldn't it? ___

Re: [Haskell-cafe] Serialization of (a - b) and IO a

2010-11-13 Thread Tillmann Rendel
Andrew Coppin wrote: [...] if you could send a block of code from one PC to another to execute it remotely. Eden can do this. http://www.mathematik.uni-marburg.de/~eden/ Eden is a distributed Haskell: You run multiple copies of the same binary on different machines, and you have the (#)

Re: [Haskell-cafe] Re: ANNOUNCE zeno 0.1.0

2010-11-13 Thread Tillmann Rendel
Will Sonnex wrote: Zeno is a fully automated inductive theorem proving tool for Haskell programs. I tried it via the web interface, and it seems to be quite cool. Good work! However: You can express a property such as takeWhile p xs ++ dropWhile p xs === xs and it will prove it to be true