Re: [Hol-info] verifying the Gordon computer

[Lawrence Paulson]

Thanks for your kind answer, but I'm really looking for the opposite: to run 
the classic old examples using the latest technology. It's a way of measuring 
the progress of our field.

Larry

> On 4 Apr 2018, at 21:59, Chun Tian  wrote:
> 
> Hi,
> 
> I didn't follow the entire discussions about “Gordon computer”, but if you 
> just want to run HOL88, that’s easy.
> 
> All you need to do is an Ubuntu 16.04 Linux environment (or Debian 
> GNU/Linux), and install the “hol88” (and other hol88-*) packages [1, 2]. 
> Latest version is “2.02.19940316”.
> 
> Building HOL88 from scratch with original source files requires some basic 
> Lisp skills, because you need a working GNU Common Lisp (GCL) to build a 
> Classic ML, then use Classic ML to build HOL88.
> 
> Hope this helps,
> 
> Chun



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Re: [Hol-info] verifying the Gordon computer

[Chun Tian]

Hi,

I didn't follow the entire discussions about “Gordon computer”, but if you just 
want to run HOL88, that’s easy.

All you need to do is an Ubuntu 16.04 Linux environment (or Debian GNU/Linux), 
and install the “hol88” (and other hol88-*) packages [1, 2]. Latest version is 
“2.02.19940316”.

Building HOL88 from scratch with original source files requires some basic Lisp 
skills, because you need a working GNU Common Lisp (GCL) to build a Classic ML, 
then use Classic ML to build HOL88.

Hope this helps,

Chun

[1] https://packages.debian.org/search?keywords=hol88
[2] https://packages.ubuntu.com/search?keywords=hol88

> Il giorno 03 apr 2018, alle ore 13:24, Lawrence Paulson  ha 
> scritto:
> 
> On 2 Apr 2018, at 10:47,  
>  wrote:
>> 
>> I take it there's nothing in the CL area that used to be something like 
>> /usr/groups/hvg ?
> 
> I couldn't find it, though it may simply have moved somewhere. More worrying 
> is that none of the older links on this page work anymore:
> 
> http://www.cl.cam.ac.uk/research/hvg/HOL/
> 
> The source files of HOL88 are online here: https://doi.org/10.17863/CAM.10246
> 
> I downloaded them in the hope that this example would be included, but sadly 
> not. It would be great if somebody could get their hands on some version of 
> this proof!
> 
> Larry
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Re: [Hol-info] verifying the Gordon computer

[Lawrence Paulson]

On 2 Apr 2018, at 10:47,  
 wrote:
> 
> I take it there's nothing in the CL area that used to be something like 
> /usr/groups/hvg ?

I couldn't find it, though it may simply have moved somewhere. More worrying is 
that none of the older links on this page work anymore:

http://www.cl.cam.ac.uk/research/hvg/HOL/

The source files of HOL88 are online here: https://doi.org/10.17863/CAM.10246

I downloaded them in the hope that this example would be included, but sadly 
not. It would be great if somebody could get their hands on some version of 
this proof!

Larry
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Re: [Hol-info] verifying the Gordon computer

[Konrad Slind]

The proofs might still run. I'd be keen to help get them going, if
they can be dug up. After Tamarack, Brian Graham verified a
hardware-level SECD machine while a student of Graham Birtwistle.
Perhaps they have running versions of those proofs.

Konrad

On Sun, Apr 1, 2018 at 4:39 AM, Lawrence Paulson  wrote:
> In 1983, using LCF_LSM, Mike verified his computer with the comment “The 
> entire specification and verification described here took several months, but 
> this includes some extending and debugging of LCF_LSM … it would take me two 
> to four weeks to do another similar exercise now. The complete proof requires 
> several hours CPU time on a 2 megabyte Vax/750.”
>
> Jeff Joyce verified several versions of this computer (which he called 
> Tamarack) using HOL. Do any of these proofs still run? I wonder how long it 
> takes now?
>
> Larry
>
>
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