Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.theory > #50039

Re: Validating that the implementation meets the spec for TM transition function

From Mr Flibble <flibble@reddwarf.jmc>
Newsgroups comp.theory
Subject Re: Validating that the implementation meets the spec for TM transition function
Message-ID <20220508203050.00001cd7@reddwarf.jmc> (permalink)
References (8 earlier) <t5782u$1p6$1@dont-email.me> <878rrcuoj6.fsf@bsb.me.uk> <t58tdr$93p$1@dont-email.me> <87tu9zubfs.fsf@bsb.me.uk> <zLUdK.4623$arR.255@fx48.iad>
Organization Jupiter Mining Corp
Date 2022-05-08 20:30 +0100

Show all headers | View raw

On Sun, 8 May 2022 15:22:07 -0400
Richard Damon <Richard@Damon-Family.org> wrote:

> On 5/8/22 2:27 PM, Ben wrote:
> > Jeff Barnett <jbb@notatt.com> writes:
> >   
> >> On 5/8/2022 7:44 AM, Ben wrote:  
> >>> Jeff Barnett <jbb@notatt.com> writes:
> >>>  
> >>>> On 5/7/2022 4:21 PM, Ben wrote:  
> >>>  
> >>>>> Here's an interesting test case that's useful for timing and so
> >>>>> on: A_1RB
> >>>>> A11LC
> >>>>> B_1RC
> >>>>> B11RB
> >>>>> C_1RD
> >>>>> C1_LE
> >>>>> D_1LA
> >>>>> D11LD
> >>>>> E_1RH
> >>>>> E1_LA
> >>>>>
> >>>>> You will need to add a '(' for DSW compatibility.  Also, note
> >>>>> that my interpreter uses _ as the tape's blank symbol.  Change
> >>>>> all _s to an actual spaces if that's what you use.
> >>>>>
> >>>>> This is (as far as I know) the current BB(5) champion.  It runs
> >>>>> for more that 47 million steps before halting.  
> >>>>
> >>>> Questions:
> >>>>
> >>>> Was 47 million steps a measured or a theoretically computed
> >>>> measure?  
> >>> Measured.
> >>>  
> >>>> How long would you estimate that a well-written TM interpreter on
> >>>> modern hardware needs to interpret the above? A few seconds or
> >>>> minutes?  
> >>> $ time ./tm bb-5-2 ""
> >>>      A   B   C   D   E   H
> >>> 1 1LC 1RB _LE 1LD _LA
> >>> _ 1RB 1RC 1RD 1LA 1RH
> >>> steps=47176874
> >>> real	0m0.237s
> >>> user	0m0.237s
> >>> sys	0m0.000s
> >>> This is a C++ interpreter I've just written so that I can compare
> >>> designs with anything PO produces.  I've not worked on making it
> >>> fast though I compiler with -O3 for this test.
> >>> It uses a plain std::string for the tape, so I imagine the
> >>> quality of the C++ library is the key factor (I've not profiled
> >>> it yet). (That table at the start is just the sates transition
> >>> table written in a compact form.)  
> >>
> >> Impressive.  
> > 
> > Thanks, but there's no skill involved, other that not picking any
> > part of the design that looks like a certain loser.
> >   
> >> I'm going to conjecture from the rate of interpretation 47M/.237s ~
> >> 200,000,000 states per second that TM definition, your code, and
> >> used library code must have all snuggled into the machine cache.  
> > 
> > Seems likely.
> >   
> >> I'm also
> >> assuming that the C++ code (because of the nature of the
> >> computation) does not lend itself to using multiple cores which
> >> makes the speed all that more impressive.  
> > 
> > Yes, single core.  My laptop is not an old banger (1.6Ghz
> > i5-8256U), but even so I was surprised.
> >   
> >> Other questions:
> >>
> >> Did you directly set up a (state X character) -> (quintuple) lookup
> >> rather than doing it in two steps?  
> > 
> > There's only one lookup, but not that one.  In my current design the
> > states are objects that hold a char to triple map, the triple being
> > the character to write, the tape movement, and a pointer to the
> > next state).
> > 
> > The inner loop is therefore very tight.  I could (probably) speed
> > it up a bit by using an array for that lookup, but I imagined I
> > might like to use fancy Unicode symbols at some stage and a map
> > will work better for that.  
> 
> My thinking is that there are only two things that have the ability
> to "cost" time. One is tape management, but using an object that acts
> like an array which is indexed in makes this fast except when we need
> to expand it, but that will generally amortize to a small value.
> (Letting the string class do that isn't a bad option).
> 
> The second "costly" operation is looking up the rule based on current 
> state / tape symbol. For speed this really needs to be O(1) (at least 
> amortized). If we reduce our state and input symbols to an internal 
> numbering of 0-n an array works great. If we limit our states to
> 'ascii characters' then the 256 x 256 array isn't outlandish in space 
> requirements for modern machines.
> 
> If you want full Unicode characters, then either you need the
> conversion to a simple 0-n enumeration, or going to a hash table to
> store the rules. The question becomes which cost more the
> input/output conversion to use 0-n values, or hashing (and handling
> the possible collisions).
> 
> My thought is that in the 0-n enumeration, the table is "dense" in
> the sense that all non-terminal state will be fully filled out. (And 
> terminal states don't actually need an entry, just a value recognized
> as terminal).
> 
> >   
> >> I don't think that wouldn't make a big difference for this example
> >> but could for TM definitions with much larger quintuple tables.
> >>
> >> Do C++ character arrays (strings?) have provisions to grow if a
> >> char is pushed passed the structure's end?  
> > 
> > push_back is amortised constant time whereas append and insert give
> > no guarantees.  I think glibc goes to some effort to make appending
> > and growing at the front quote efficient.

Have you considered std::deque? Might be worth trying if the tape
sequence isn't small.

/Flibble

Back to comp.theory | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Validating that the implementation meets the spec for TM transition function olcott <polcott2@gmail.com> - 2022-05-06 15:53 -0500
  Re: Validating that the implementation meets the spec for TM transition function Mr Flibble <flibble@reddwarf.jmc> - 2022-05-06 22:08 +0100
    Re: Validating that the implementation meets the spec for TM transition function olcott <polcott2@gmail.com> - 2022-05-06 16:25 -0500
      Re: Validating that the implementation meets the spec for TM transition function Mr Flibble <flibble@reddwarf.jmc> - 2022-05-06 22:29 +0100
        Re: Validating that the implementation meets the spec for TM transition function olcott <polcott2@gmail.com> - 2022-05-06 17:08 -0500
          Re: Validating that the implementation meets the spec for TM transition function Mr Flibble <flibble@reddwarf.jmc> - 2022-05-07 13:02 +0100
      Re: Validating that the implementation meets the spec for TM transition function Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2022-05-06 14:41 -0700
        Re: Validating that the implementation meets the spec for TM transition function olcott <polcott2@gmail.com> - 2022-05-06 17:02 -0500
          Re: Validating that the implementation meets the spec for TM transition function Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2022-05-06 15:36 -0700
            Re: Validating that the implementation meets the spec for TM transition function olcott <polcott2@gmail.com> - 2022-05-06 17:54 -0500
          Re: Validating that the implementation meets the spec for TM transition function Mike Terry <news.dead.person.stones@darjeeling.plus.com> - 2022-05-07 00:39 +0100
            Re: Validating that the implementation meets the spec for TM transition function olcott <polcott2@gmail.com> - 2022-05-06 18:54 -0500
          Re: Validating that the implementation meets the spec for TM transition function Ben <ben.usenet@bsb.me.uk> - 2022-05-07 01:54 +0100
            Re: Validating that the implementation meets the spec for TM transition function olcott <polcott2@gmail.com> - 2022-05-06 20:05 -0500
              Re: Validating that the implementation meets the spec for TM transition function Ben <ben.usenet@bsb.me.uk> - 2022-05-07 23:21 +0100
                Re: Validating that the implementation meets the spec for TM transition function Jeff Barnett <jbb@notatt.com> - 2022-05-07 19:57 -0600
                Re: Validating that the implementation meets the spec for TM transition function Richard Damon <Richard@Damon-Family.org> - 2022-05-08 07:34 -0400
                Re: Validating that the implementation meets the spec for TM transition function Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2022-05-08 05:11 -0700
                Re: Validating that the implementation meets the spec for TM transition function Richard Damon <Richard@Damon-Family.org> - 2022-05-08 14:20 -0400
                Re: Validating that the implementation meets the spec for TM transition function Ben <ben.usenet@bsb.me.uk> - 2022-05-08 19:59 +0100
                Re: Validating that the implementation meets the spec for TM transition function Ben <ben.usenet@bsb.me.uk> - 2022-05-09 03:14 +0100
                Re: Validating that the implementation meets the spec for TM transition function olcott <NoOne@NoWhere.com> - 2022-05-08 22:39 -0500
                Re: Validating that the implementation meets the spec for TM transition function Ben <ben.usenet@bsb.me.uk> - 2022-05-09 12:36 +0100
                Re: Validating that the implementation meets the spec for TM transition function Ben <ben.usenet@bsb.me.uk> - 2022-05-08 14:44 +0100
                Re: Validating that the implementation meets the spec for TM transition function Jeff Barnett <jbb@notatt.com> - 2022-05-08 11:08 -0600
                Re: Validating that the implementation meets the spec for TM transition function Ben <ben.usenet@bsb.me.uk> - 2022-05-08 19:27 +0100
                Re: Validating that the implementation meets the spec for TM transition function Richard Damon <Richard@Damon-Family.org> - 2022-05-08 15:22 -0400
                Re: Validating that the implementation meets the spec for TM transition function Mr Flibble <flibble@reddwarf.jmc> - 2022-05-08 20:30 +0100
                Re: Validating that the implementation meets the spec for TM transition function olcott <NoOne@NoWhere.com> - 2022-05-09 10:53 -0500
                Re: Validating that the implementation meets the spec for TM transition function Ben <ben.usenet@bsb.me.uk> - 2022-05-09 23:08 +0100
                Re: Validating that the implementation meets the spec for TM transition function olcott <NoOne@NoWhere.com> - 2022-05-09 17:32 -0500
                Re: Validating that the implementation meets the spec for TM transition function Richard Damon <Richard@Damon-Family.org> - 2022-05-09 20:31 -0400
                Re: Validating that the implementation meets the spec for TM transition function Ben <ben.usenet@bsb.me.uk> - 2022-05-10 01:37 +0100
                Re: Validating that the implementation meets the spec for TM transition function olcott <NoOne@NoWhere.com> - 2022-05-09 20:29 -0500
                Re: Validating that the implementation meets the spec for TM transition function Ben <ben.usenet@bsb.me.uk> - 2022-05-10 11:35 +0100
                Re: Validating that the implementation meets the spec for TM transition function [ best tape] olcott <NoOne@NoWhere.com> - 2022-05-10 19:12 -0500
                Re: Validating that the implementation meets the spec for TM transition function Jeff Barnett <jbb@notatt.com> - 2022-05-08 14:51 -0600
                Re: Validating that the implementation meets the spec for TM transition function olcott <NoOne@NoWhere.com> - 2022-05-09 10:18 -0500
                Re: Validating that the implementation meets the spec for TM transition function Ben <ben.usenet@bsb.me.uk> - 2022-05-09 23:14 +0100
                Re: Validating that the implementation meets the spec for TM transition function olcott <NoOne@NoWhere.com> - 2022-05-09 17:42 -0500
                Re: Validating that the implementation meets the spec for TM transition function Ben <ben.usenet@bsb.me.uk> - 2022-05-10 01:13 +0100
                Re: Validating that the implementation meets the spec for TM transition function olcott <NoOne@NoWhere.com> - 2022-05-09 20:28 -0500
                Re: Validating that the implementation meets the spec for TM transition function Richard Damon <Richard@Damon-Family.org> - 2022-05-09 23:34 -0400
                Re: Validating that the implementation meets the spec for TM transition function Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2022-05-10 00:24 -0700
                Re: Validating that the implementation meets the spec for TM transition function Ben <ben.usenet@bsb.me.uk> - 2022-05-10 11:31 +0100
                Re: Validating that the implementation meets the spec for TM transition function Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2022-05-10 03:46 -0700
                Re: Validating that the implementation meets the spec for TM transition function Ben <ben.usenet@bsb.me.uk> - 2022-05-10 12:23 +0100
                Re: Validating that the implementation meets the spec for TM transition function olcott <NoOne@NoWhere.com> - 2022-05-10 06:53 -0500
                Re: Validating that the implementation meets the spec for TM transition function Richard Damon <Richard@Damon-Family.org> - 2022-05-10 08:01 -0400
                Re: Validating that the implementation meets the spec for TM transition function Ben <ben.usenet@bsb.me.uk> - 2022-05-10 16:41 +0100
                Re: Validating that the implementation meets the spec for TM transition function Jeff Barnett <jbb@notatt.com> - 2022-05-10 11:56 -0600
                Re: Validating that the implementation meets the spec for TM transition function olcott <NoOne@NoWhere.com> - 2022-05-10 19:43 -0500
                Re: Validating that the implementation meets the spec for TM transition function Jeff Barnett <jbb@notatt.com> - 2022-05-10 20:49 -0600
                Re: Validating that the implementation meets the spec for TM transition function Mr Flibble <flibble@reddwarf.jmc> - 2022-05-10 19:01 +0100
                Re: Validating that the implementation meets the spec for TM transition function "dklei...@gmail.com" <dkleinecke@gmail.com> - 2022-05-10 11:59 -0700
                Re: Validating that the implementation meets the spec for TM transition function olcott <NoOne@NoWhere.com> - 2022-05-10 19:04 -0500
                Re: Validating that the implementation meets the spec for TM transition function Ben <ben.usenet@bsb.me.uk> - 2022-05-11 01:42 +0100
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-10 20:12 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Mike Terry <news.dead.person.stones@darjeeling.plus.com> - 2022-05-11 03:05 +0100
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-10 21:14 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2022-05-11 02:19 -0700
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-11 08:54 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Mike Terry <news.dead.person.stones@darjeeling.plus.com> - 2022-05-11 16:27 +0100
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-11 10:36 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Mike Terry <news.dead.person.stones@darjeeling.plus.com> - 2022-05-11 16:49 +0100
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2022-05-11 14:30 -0700
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-11 16:38 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Mike Terry <news.dead.person.stones@darjeeling.plus.com> - 2022-05-12 00:01 +0100
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-11 19:05 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Mike Terry <news.dead.person.stones@darjeeling.plus.com> - 2022-05-12 04:03 +0100
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-11 22:29 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-11 22:37 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Ben <ben.usenet@bsb.me.uk> - 2022-05-12 15:02 +0100
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Mike Terry <news.dead.person.stones@darjeeling.plus.com> - 2022-05-12 19:03 +0100
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Ben <ben.usenet@bsb.me.uk> - 2022-05-12 19:30 +0100
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-12 14:23 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Richard Damon <Richard@Damon-Family.org> - 2022-05-12 19:19 -0400
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Mike Terry <news.dead.person.stones@darjeeling.plus.com> - 2022-05-13 01:02 +0100
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Jeff Barnett <jbb@notatt.com> - 2022-05-11 23:13 -0600
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-12 00:43 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Ben <ben.usenet@bsb.me.uk> - 2022-05-11 04:02 +0100
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-10 22:07 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Ben <ben.usenet@bsb.me.uk> - 2022-05-11 13:40 +0100
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-11 09:02 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Mike Terry <news.dead.person.stones@darjeeling.plus.com> - 2022-05-11 16:09 +0100
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-11 10:29 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Ben <ben.usenet@bsb.me.uk> - 2022-05-11 20:35 +0100
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-11 15:12 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Ben <ben.usenet@bsb.me.uk> - 2022-05-11 22:54 +0100
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-11 17:02 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Ben <ben.usenet@bsb.me.uk> - 2022-05-12 02:00 +0100
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-11 20:37 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Ben <ben.usenet@bsb.me.uk> - 2022-05-12 02:49 +0100
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-11 21:49 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Ben <ben.usenet@bsb.me.uk> - 2022-05-12 14:45 +0100
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-12 10:31 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Ben <ben.usenet@bsb.me.uk> - 2022-05-12 21:20 +0100
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-12 15:33 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Mr Flibble <flibble@reddwarf.jmc> - 2022-05-12 21:36 +0100
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-12 16:28 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Mr Flibble <flibble@reddwarf.jmc> - 2022-05-12 22:33 +0100
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Ben <ben.usenet@bsb.me.uk> - 2022-05-12 22:02 +0100
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-12 16:14 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Ben <ben.usenet@bsb.me.uk> - 2022-05-13 00:18 +0100
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-12 18:22 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Ben <ben.usenet@bsb.me.uk> - 2022-05-13 01:10 +0100
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-12 19:58 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Ben <ben.usenet@bsb.me.uk> - 2022-05-13 02:54 +0100
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Richard Damon <Richard@Damon-Family.org> - 2022-05-12 22:09 -0400
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-12 21:41 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Mikko <mikko.levanto@iki.fi> - 2022-05-13 10:01 +0300
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-13 10:57 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Mikko <mikko.levanto@iki.fi> - 2022-05-13 19:06 +0300
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Ben <ben.usenet@bsb.me.uk> - 2022-05-13 11:54 +0100
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Mr Flibble <flibble@reddwarf.jmc> - 2022-05-13 13:38 +0100
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-13 11:07 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Mr Flibble <flibble@reddwarf.jmc> - 2022-05-13 17:14 +0100
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-13 12:03 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Mr Flibble <flibble@reddwarf.jmc> - 2022-05-13 18:09 +0100
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-13 12:15 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Ben <ben.usenet@bsb.me.uk> - 2022-05-13 17:26 +0100
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-13 12:07 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Ben <ben.usenet@bsb.me.uk> - 2022-05-13 19:45 +0100
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-13 13:57 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Richard Damon <Richard@Damon-Family.org> - 2022-05-13 15:04 -0400
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-13 14:15 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Richard Damon <Richard@Damon-Family.org> - 2022-05-13 15:40 -0400
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-13 14:58 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Richard Damon <Richard@Damon-Family.org> - 2022-05-13 16:24 -0400
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-13 15:33 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Richard Damon <Richard@Damon-Family.org> - 2022-05-13 17:25 -0400
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-13 16:48 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Richard Damon <Richard@Damon-Family.org> - 2022-05-13 18:05 -0400
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Ben <ben.usenet@bsb.me.uk> - 2022-05-13 20:12 +0100
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-13 14:28 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Ben <ben.usenet@bsb.me.uk> - 2022-05-13 21:58 +0100
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-13 16:12 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Ben <ben.usenet@bsb.me.uk> - 2022-05-13 23:57 +0100
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-13 17:59 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Ben <ben.usenet@bsb.me.uk> - 2022-05-14 01:00 +0100
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-13 19:09 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Ben <ben.usenet@bsb.me.uk> - 2022-05-14 01:21 +0100
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-17 13:17 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2022-05-14 01:54 -0700
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-14 04:13 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2022-05-14 03:30 -0700
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-14 08:51 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2022-05-14 11:38 -0700
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-14 13:54 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Ben <ben.usenet@bsb.me.uk> - 2022-05-14 13:15 +0100
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2022-05-14 11:37 -0700
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Mike Terry <news.dead.person.stones@darjeeling.plus.com> - 2022-05-14 19:47 +0100
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Ben <ben.usenet@bsb.me.uk> - 2022-05-14 20:15 +0100
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2022-05-14 12:52 -0700
                Re: Validating that the implementation meets the spec for TM transition function [ unlimited scalability ] olcott <NoOne@NoWhere.com> - 2022-05-13 16:43 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ unlimited scalability ] Ben <ben.usenet@bsb.me.uk> - 2022-05-13 23:58 +0100
                Re: Validating that the implementation meets the spec for TM transition function [ unlimited scalability ] olcott <NoOne@NoWhere.com> - 2022-05-13 18:03 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Jeff Barnett <jbb@notatt.com> - 2022-05-13 15:06 -0600
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-13 16:16 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Jeff Barnett <jbb@notatt.com> - 2022-05-13 17:48 -0600
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-13 19:06 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Jeff Barnett <jbb@notatt.com> - 2022-05-13 19:58 -0600
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-13 22:39 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Jeff Barnett <jbb@notatt.com> - 2022-05-13 19:48 -0600
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-13 11:00 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Richard Damon <Richard@Damon-Family.org> - 2022-05-13 12:08 -0400
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Ben <ben.usenet@bsb.me.uk> - 2022-05-13 17:27 +0100
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] olcott <NoOne@NoWhere.com> - 2022-05-13 12:10 -0500
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Richard Damon <Richard@Damon-Family.org> - 2022-05-13 13:20 -0400
                Re: Validating that the implementation meets the spec for TM transition function [ best tape ] Richard Damon <Richard@Damon-Family.org> - 2022-05-11 22:07 -0400
                Re: Validating that the implementation meets the spec for TM transition function olcott <NoOne@NoWhere.com> - 2022-05-10 21:06 -0500
                Re: Validating that the implementation meets the spec for TM transition function Ben <ben.usenet@bsb.me.uk> - 2022-05-11 00:11 +0100
                Re: Validating that the implementation meets the spec for TM transition function olcott <NoOne@NoWhere.com> - 2022-05-10 19:41 -0500
                Re: Validating that the implementation meets the spec for TM transition function olcott <NoOne@NoWhere.com> - 2022-05-10 06:53 -0500
                Re: Validating that the implementation meets the spec for TM transition function olcott <NoOne@NoWhere.com> - 2022-05-07 21:04 -0500
                Re: Validating that the implementation meets the spec for TM transition function Richard Damon <Richard@Damon-Family.org> - 2022-05-08 07:30 -0400
                Re: Validating that the implementation meets the spec for TM transition function Ben <ben.usenet@bsb.me.uk> - 2022-05-08 14:46 +0100
                Re: Validating that the implementation meets the spec for TM transition function olcott <NoOne@NoWhere.com> - 2022-05-09 10:19 -0500
        Re: Validating that the implementation meets the spec for TM transition function Ben <ben.usenet@bsb.me.uk> - 2022-05-07 01:22 +0100
          Re: Validating that the implementation meets the spec for TM transition function olcott <polcott2@gmail.com> - 2022-05-06 19:38 -0500
            Re: Validating that the implementation meets the spec for TM transition function Ben <ben.usenet@bsb.me.uk> - 2022-05-07 02:01 +0100
              Re: Validating that the implementation meets the spec for TM transition function olcott <polcott2@gmail.com> - 2022-05-06 20:22 -0500
                Re: Validating that the implementation meets the spec for TM transition function Ben <ben.usenet@bsb.me.uk> - 2022-05-07 23:30 +0100
          Re: Validating that the implementation meets the spec for TM transition function Ben <ben.usenet@bsb.me.uk> - 2022-05-07 02:04 +0100
            Re: Validating that the implementation meets the spec for TM transition function olcott <polcott2@gmail.com> - 2022-05-06 20:26 -0500
            Re: Validating that the implementation meets the spec for TM transition function Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2022-05-07 05:00 -0700
              Re: Validating that the implementation meets the spec for TM transition function Ben <ben.usenet@bsb.me.uk> - 2022-05-07 23:31 +0100
                Re: Validating that the implementation meets the spec for TM transition function olcott <NoOne@NoWhere.com> - 2022-05-07 18:36 -0500
                Re: Validating that the implementation meets the spec for TM transition function Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2022-05-08 02:39 -0700
                Re: Validating that the implementation meets the spec for TM transition function [ priorities ] olcott <NoOne@NoWhere.com> - 2022-05-08 17:21 -0500
  Re: Validating that the implementation meets the spec for TM transition function Mikko <mikko.levanto@iki.fi> - 2022-05-07 11:06 +0300
    Re: Validating that the implementation meets the spec for TM transition function olcott <polcott2@gmail.com> - 2022-05-07 11:14 -0500
      Re: Validating that the implementation meets the spec for TM transition function Mikko <mikko.levanto@iki.fi> - 2022-05-08 11:57 +0300
        Re: Validating that the implementation meets the spec for TM transition function olcott <NoOne@NoWhere.com> - 2022-05-09 10:35 -0500

csiph-web