Re: I the mirror

2003-02-04 Thread Bruno Marchal
Dear Stephen,





[SPK]

So p is it is not provable that not p? This is a double negative
implying that your logic follows the law of the excluded middle. That is ok,
but I was hoping that you would see that as being a logicwise subset of
Intuitionistic logic, ala Topos and Heyting Algebras...



BM:
I use the classical boolean logic for the third person discourse by
machine.
I get the Heytingian Intuitionist logic for the first person, modelized by
the thaetetic definition of knowledge apply to classical self-reference.
That is the passage from []p to p  []p.
I get the quantum logic by refining that notion of knowledge when I translate
the uda in a consistent machine language. A little more below.




BM:  Any machine or theory extending classical logic and capable of
  proving elementary arithmetical theorems.

[SPK]

Umm, what are the bounds of this extension of classical logic? Any
possibility of getting into contectual or modal aspects, such as []p iff
some x implies p, where x is some context that may vanish in some limit. An
example of this is found in solutions of the grue paradox.




BM:
There are no bounds for the extension. What I prove remains true
for any definissable or axiomatizable extension of classical logic + Peano
arithmetic (let us say).





snip


 SPK:
  We may note that machines are usually defined by some set of

functions

 N - N, where N are the Natural numbers.

 BM: Read my to diagonalisation post for making this precise. I would say

that

 controlable machine, constructive reals, and total computable function

(where

 total means defined on all N, can be, in our context, identified. But
 such a set is not *recursively* (mechanically) enumerable
 All my enterprise, and actually Church thesis, are made consistent by

the

 fact that the set of total computable function is a necessarily fuzzy set
 include in the set of all computable functions.


[SPK]

You are avoiding my question! How is this fuzzyness defined? Is it
some analogy to the boundary of a recursively enumerable set or is it some
membership function that can range over [0,1] or some thing else?



BM:
There is an analogy with the border of a Recursively Enumerable set (having
a non recursively enumerable complement). That is, a RE but non recursive set.
It can be arbitrary difficult to decide the belongness for the point near
the frontier. But the precise meaning is given in the diagonalisation posts.






 SPK:
 I am very skeptical that this
 (countable) set of numbers alone is sufficient in itself to cover the

range

 of all possible systems in Nature (the Totality of possible existential
 expressions, including all mathematics). Given this caveat, is this

within

 your notion of a definition of these words?

 BM:
 Please read carefully the diagonalisation post. Church thesis is really

the

 schroedinger equation of comp. I mean a highly non trivial statement in

the

 fundamentals of mathematics. It is the roots of the incompleteness

phenomenon.

 Before Church thesis you could have believed that to be a machine is a
 simplifying assumption. After Church thesis we know that machines,
 and universal
 machines in particular have unbounded complexity. Universal machines are
 mostly lucky unpredictable being.


[SPK]

What is the link to the diagonalization post? It is true that I have a
problem with the Church thesis, but it is that it seems to be myopic and
limited.



BM:
Mmmh... OK. I promise coming back on it. I have not the time explaining it
now. Perhaps it is the real difficulty.
Not only Church Thesis is not a limitation, but with comp, it is even a
quasi-constructive vaccine against all form of limitation.
It is Church thesis which makes general the incompleteness phenomenon
and which transforms any honest machine into a modest machine.





I see no analogy between the Church thesis and SWE other than a
mapping function - such that Church thesis is about N - N and SWE can be
considered to be about C - C, but it is obvious that N \subset C and not
the otherway around.



BM:
Well, that analogy is shallow :(
I was just saying that Church thesis introduces non trivial constraints
on the machine psychological states. My comparison with SWE, here, was
probably unpedagogical, sorry.





snip


 [SPK]
 
  What I am trying to argue is that we can not abondon eiter sup-phys

nor

 comp except in the very very special case where the distinguishability
 between the two vanishes, e.g. a neutal monism that obtains in the

infinite

 limit of all possible existential (or ontological) expressions and,
 additionally, we must not be so cavalier in our postulations.
  As I have tried to argue before, the notion that the mind is UTM
 emulable is not a proven fact and at this point should be considered to

be

 merely a conjecture.

 BM:
 It cannot be taken as a conjecture. It is an hypothesis which has the
 curious feature that if you add it as an axioms it becomes false!



[SPK]

 

Re: I the mirror

2003-02-01 Thread Stephen Paul King
Dear Bruno,

Snipping a lot.

- Original Message -
From: Bruno Marchal [EMAIL PROTECTED]
To: Stephen Paul King [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Sent: Friday, January 31, 2003 6:44 AM
Subject: Re: I the mirror


 Hello Stephen,


 At 13:18 -0500 29/01/2003, Stephen Paul King wrote:
 Could you translate these symbols into words so that I could better wrap
 my mind around them and spin them around in my head?


 BM:
 Basically []p = provable p in such a precise way that
   1) you can verify the proof in a finite number of mechanical steps
   2) grosso modo p is made true in all recursively enumerable
  maximal extension of the machine/theory
 p is -[]-p   you should read p by consistent p. That is the fact
   that -p is not probable, so that you get no contradiction by adding
   p as a new axiom to the theory or to the machine roots belief.

[SPK]

So p is it is not provable that not p? This is a double negative
implying that your logic follows the law of the excluded middle. That is ok,
but I was hoping that you would see that as being a logicwise subset of
Intuitionistic logic, ala Topos and Heyting Algebras...


snip

 SPK:
   I take consistent means that given some
 formal model, whose exact definition must be given somehow ...

 BM:
 Any machine or theory extending classical logic and capable of
 proving elementary arithmetical theorems.

[SPK]

Umm, what are the bounds of this extension of classical logic. Any
possibility of getting into contectual or modal aspects, such as []p iff
some x implies p, where x is some context that may vanish in some limit. An
example of this is found in solutions of the grue paradox.



snip

 SPK:
  We may note that machines are usually defined by some set of
functions
 N - N, where N are the Natural numbers.

 BM: Read my to diagonalisation post for making this precise. I would say
that
 controlable machine, constructive reals, and total computable function
(where
 total means defined on all N, can be, in our context, identified. But
 such a set is not *recursively* (mechanically) enumerable
 All my enterprise, and actually Church thesis, are made consistent by
the
 fact that the set of total computable function is a necessarily fuzzy set
 include in the set of all computable functions.

[SPK]

You are avoiding my question! How is this fuzzyness defined? Is it
some analogy to the boundary of a recursively enumerable set or is it some
membership function that can range over [0,1] or some thing else?



 SPK:
 I am very skeptical that this
 (countable) set of numbers alone is sufficient in itself to cover the
range
 of all possible systems in Nature (the Totality of possible existential
 expressions, including all mathematics). Given this caveat, is this
within
 your notion of a definition of these words?

 BM:
 Please read carefully the diagonalisation post. Church thesis is really
the
 schroedinger equation of comp. I mean a highly non trivial statement in
the
 fundamentals of mathematics. It is the roots of the incompleteness
phenomenon.
 Before Church thesis you could have believed that to be a machine is a
 simplifying assumption. After Church thesis we know that machines,
 and universal
 machines in particular have unbounded complexity. Universal machines are
 mostly lucky unpredictable being.

[SPK]

What is the link to the diagonalization post? It is true that I have a
problem with the Church thesis, but it is that it seems to be myopic and
limited. I see no analogy between the Church thesis and SWE other than a
mapping function - such that Church thesis is about N - N and SWE can be
considered to be about C - C, but it is obvious that N \subset C and not
the otherway around.

snip

 [SPK]
 
  What I am trying to argue is that we can not abondon eiter sup-phys
nor
 comp except in the very very special case where the distinguishability
 between the two vanishes, e.g. a neutal monism that obtains in the
infinite
 limit of all possible existential (or ontological) expressions and,
 additionally, we must not be so cavalier in our postulations.
  As I have tried to argue before, the notion that the mind is UTM
 emulable is not a proven fact and at this point should be considered to
be
 merely a conjecture.

 BM:
 It cannot be taken as a conjecture. It is an hypothesis which has the
 curious feature that if you add it as an axioms it becomes false!


[SPK]

This is what bothers me about it, it is like the Createan what is honest
so long as he never speaks a word and yet you do not seem to allow for a
resolution of the Liar paradox other that demanding silence, ala Russell's
solution. I hope some day soon we can explore the notion of non well founded
sets that Peter Wegner proposed as a means to generalize the notion of
computation.


 (This is a known feature of modal logics or intensional mathematics).
 So the notion that the mind is [consistently] UTM emulable is not only
 not a proven fact

Re: I the mirror

2003-01-31 Thread Bruno Marchal
Hello Stephen,


At 13:18 -0500 29/01/2003, Stephen Paul King wrote:

Could you translate these symbols into words so that I could better wrap
my mind around them and spin them around in my head?



BM:
Basically []p = provable p in such a precise way that
 1) you can verify the proof in a finite number of mechanical steps
 2) grosso modo p is made true in all recursively enumerable
maximal extension of the machine/theory
p is -[]-p   you should read p by consistent p. That is the fact
 that -p is not probable, so that you get no contradiction by adding
 p as a new axiom to the theory or to the machine roots belief.




  BM: Here I gave a little sketch of the translation of UDA in a consistent

 machine's language.


[SPK]

I hope that you realize that there are many ideas that you are assuming
tacitly that I and others are not familiar with and/or may have other
definitions for.


BM:
I constantly refer the interested lister to Boolos 1993 book. Or 
Smorynski 1985.


SPK:
For example: exactly what do the words consistent,
machine and language mean?


BM: See above.


SPK:

 I take consistent means that given some
formal model, whose exact definition must be given somehow ...


BM:
Any machine or theory extending classical logic and capable of
proving elementary arithmetical theorems.


SPK:

... or, at least,
must be familiar to your readers, a consistent machine's language is one
where there is no contradiction obtainable given any possible combination of
the machine's language.


BM:
Not any possible combination, only those who respect classical logical
inference rule. I interview (in AUDA) the platonist computationalist machine!

SPK:

We may note that machines are usually defined by some set of functions
N - N, where N are the Natural numbers.


BM: Read my to diagonalisation post for making this precise. I would say that
controlable machine, constructive reals, and total computable function (where
total means defined on all N, can be, in our context, identified. But
such a set is not *recursively* (mechanically) enumerable
All my enterprise, and actually Church thesis, are made consistent by the
fact that the set of total computable function is a necessarily fuzzy set
include in the set of all computable functions.




SPK:

I am very skeptical that this
(countable) set of numbers alone is sufficient in itself to cover the range
of all possible systems in Nature (the Totality of possible existential
expressions, including all mathematics). Given this caveat, is this within
your notion of a definition of these words?


BM:
Please read carefully the diagonalisation post. Church thesis is really the
schroedinger equation of comp. I mean a highly non trivial statement in the
fundamentals of mathematics. It is the roots of the incompleteness phenomenon.
Before Church thesis you could have believed that to be a machine is a
simplifying assumption. After Church thesis we know that machines, 
and universal
machines in particular have unbounded complexity. Universal machines are
mostly lucky unpredictable being.


  SPK:

  Ok, I am not questioning whether or not there exists

self-referential

 programs (plural???) or a Univiversal program (singular???), I am
 wondering about how do we go from formal existence postulation to the
 possibility of maniferstation itself. This is where I think that there

is

 a problem if only in that the domain of explanatory power of such models
 only applies to a very narrow range.


BM:
I am really afraid you don't take Church thesis into account. The explanatory
power applies to range which you can not even bound by formal tools.
Even the whole Cantor Paradise is too poor to explain *in general* universal
machine behavior.
Some people still believe that the computer industry will make our life
more simple. They will be disillusioned. A good thing perhaps.
Now, for an explanation of the qualitative aspect of the manifestation,
well this is all the purpose of my thesis. Note that I acknowledge an
explanatory gap, but I show that comp justifies the existence of a talk
on explanatory gap by the machine's first person.




  BM

 Not with comp by hypothesis. Manifestation are indexicals. Strictly

speaking

 this follows from the UDA + OCCAM RAZOR, or better UDA + MOVIE GRAPH.
 (we can come back on this latter). See Maudlin 89 for something equivalent
 to the movie graph. Maudlin realises the incompatibility between the
 physical supervenience thesis (sup-phys) and comp. Because he want
 sup-phys, he abandons comp. Because I postulate comp, I abandon sup-phys.



[SPK]

What I am trying to argue is that we can not abondon eiter sup-phys nor
comp except in the very very special case where the distinguishability
between the two vanishes, e.g. a neutal monism that obtains in the infinite
limit of all possible existential (or ontological) expressions and,
additionally, we must not be so cavalier in our postulations.
As I have tried to argue 

Re: I the mirror

2003-01-29 Thread Stephen Paul King
Dear Bruno,

Interleaving many comments.

- Original Message -
From: Bruno Marchal [EMAIL PROTECTED]
To: Stephen Paul King [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Sent: Saturday, January 25, 2003 10:24 AM
Subject: Re: I the mirror


 Hi Stephen,



 SPK:
 I have no difficulties with such notions, but would like to see a more
 general situation discussed such as how we can have a formal model of
 multiple 1-person intentionalities. I see this more general stuation as
 being the exact analogy of the problem of time in physics and given my
 interest in that problem I am engaging in this discussion. ;-)


 BM:
 Third person self-reference (corresponding to Kleene, Case, ...):

 []p   ([] = Godel's beweisbar), p arithmetical proposition.

 First person self-reference without self-name):

p  []pThat gives through Kripke semantics an antisymmetrical
   logic of subjective time.

 Note G* proves []p   -   (p  []p), but G does not prove it!!!

 Also p  []p is not definissable in arithmetic: the machine will hardly
 confuses herself with a description, or any 3-view of herself like a
 doppelganger.

 First person plural (rational plausible communicable belief)

p  []p   p arithmetical proposition

 First person plural knowledge restricted to the DU accessible
 propositions/states:

 p  []p   p \Sigma_1 arithmetical proposition.

 This gives the quantum modal logics Z1 and Z1*. Where the atomical
 propositions (here just the leaves of DU*) are persistent in the sense
that
 once a lobian machine got it in her actual world, it remains true in her
 neighborhood (which is sparse in UD*).

[SPK]

Could you translate these symbols into words so that I could better wrap
my mind around them and spin them around in my head?



 Here I gave a little sketch of the translation of UDA in a consistent
 machine's language.

[SPK]

I hope that you realize that there are many ideas that you are assuming
tacitly that I and others are not familiar with and/or may have other
definitions for. For example: exactly what do the words consistent,
machine and language mean? I take consistent means that given some
formal model, whose exact definition must be given somehow or, at least,
must be familiar to your readers, a consistent machine's language is one
where there is no contradiction obtainable given any possible combination of
the machine's language.
We may note that machines are usually defined by some set of functions
N - N, where N are the Natural numbers. I am very skeptical that this
(countable) set of numbers alone is sufficient in itself to cover the range
of all possible systems in Nature (the Totality of possible existential
expressions, including all mathematics). Given this caveat, is this within
your notion of a definition of these words?


 SPK:
  Ok, I am not questioning whether or not there exists
self-referential
 programs (plural???) or a Univiversal program (singular???), I am
 wondering about how do we go from formal existence postulation to the
 possibility of maniferstation itself. This is where I think that there
is
 a problem if only in that the domain of explanatory power of such models
 only applies to a very narrow range.


 BM
 Not with comp by hypothesis. Manifestation are indexicals. Strictly
speaking
 this follows from the UDA + OCCAM RAZOR, or better UDA + MOVIE GRAPH.
 (we can come back on this latter). See Maudlin 89 for something equivalent
 to the movie graph. Maudlin realises the incompatibility between the
 physical supervenience thesis (sup-phys) and comp. Because he want
 sup-phys, he abandons comp. Because I postulate comp, I abandon sup-phys.


[SPK]

What I am trying to argue is that we can not abondon eiter sup-phys nor
comp except in the very very special case where the distinguishability
between the two vanishes, e.g. a neutal monism that obtains in the infinite
limit of all possible existential (or ontological) expressions and,
additionally, we must not be so cavalier in our postulations.
As I have tried to argue before, the notion that the mind is UTM
emulable is not a proven fact and at this point should be considered to be
merely a conjecture. The thought experiement using classical cloning and or
teleporting of minds has several assumptions that are contrary to known
physical facts, such as the imposibility of simulataneously measuring the
position and momenta of all the required atoms of a brain such that a UTM
could be defined that would emulate its behaviour. This, in itself, leads me
to reject the entire notion of brain cloning and any idea that depends on
it as simple idealistic. It is as fantastic as a pink unicorn. I see not way
in which the classical teleportation is possible in the real world.


 SPK
 Here we find the following:
 http://www.cis.udel.edu/~case/slides/krt-consc-cs-slides.ps


 BM:
 Nice. I didn't see it!


 SPK:
   Exactly what is the formal statement of if she looks closely

Re: I the mirror

2003-01-24 Thread Stephen Paul King
Dear Bruno,

First let me state that the reason that I am discussing this idea with
you is so that I can kill two birds with one stone. I would like to better
understand your thesis and would like to see how it accounts for or solves
the epiphenomenona problem so that I can evaluate a model that I am
working on.

- Original Message -
From: Bruno Marchal [EMAIL PROTECTED]
To: Stephen Paul King [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Sent: Thursday, January 23, 2003 2:18 AM
Subject: Re: I the mirror


 Hi Stephen,

 At 10:52 -0500 22/01/2003, Stephen Paul King wrote:
 Dear Bruno,
 
  Thank you for the reference to the Case papers. It is ironic that
his
 argument makes the case for the subtle issue that I am trying to point
out
 to you, that there is a grave problem with your model.
 
  In http://www.cis.udel.edu/~case/self-ref.html we find a very
 informative discussion of self-reference and the way that infinite
 regression is avoided by using an external aspect to act as a
 mirror/sketch pad for the machine to use as a self-referential imaging
 system. While I do have some reservation regarding the assumption that
N -
 N functions can completely capture physics and the exclusive usage of
Well
 founded statements in mathematics, I propose to set them aside for the
sake
 of a discussion.

[SPK]

I have cut and pasted the exact words used:

Machine Self-Reference
The robot pictured below has a transparent front and is facing an
(expandable) board, a little to its right, and a mirror, a little to its
left. It's transparent front enables it to see in the mirror its complete
underlying mechanism, flowchart, or program. The board serves for input,
output, and intermediate computations. Such a self-referential or
self-reflecting robot has data access, then, to a complete (low level) self
model.



It is depicted already having copied onto the board a portion of its
``program'' (corrected for mirror reversal). Note that the robot's self copy
is projected externally to the robot itself. In this way infinite regress is
not required for the robot to have complete (low level) self knowledge. The
use this robot makes of its complete (low level) self knowledge is whatever
was built into it, but it could have been anything algorithmic.

For general computer programs, in contexts where mirrors may not be
available, a quiescent (low level) self-model can be obtained by a mechanism
logically similar to the self-replication mechanism employed by
single-celled organisms.



 [BM] I am not sure which external aspect you allude to. Case'w work
relies
 on the second recursion of Kleene, which gives easy way to construct
 self-referential programs. The mirror is really in machine's head.

[SPK]

Ok, but if, as you state, the 'mirror' is really in the machine's head
we are only shifting the 3-person view; instead of seeing the robot standing
in front of a mirror, we zoom inside the robot's innards and find the
'mirror'. This does not chance anything.
On the other hand, you are making a different point since the 'mirror'
that Case and you (I think) are thinkng about is not a physical 'mirror' or
any other physical object. That is to be expected given that we seem to be
discussing the subtleties of an immaterail monist theory, but does nothing
to blunt the point of my question: Hw does an immaterial monist theory give
a consistent meaning to notions such as transitivity, concurrency,
persistence and other properties that are associated with physicality?


 The basic idea is very easy. Let D be a duplicator in the sense that
 the program D applied to X, written DX, gives a description of X apply to
 itself, that is XX.
 So DA gives AA. DB gives BB. DC gives CC, ...

 What gives DD?

 Yes. DD gives DD. It's an example of a duplicating program.


[SPK]

I have no difficulties with such notions, but would like to see a more
general situation discussed such as how we can have a formal model of
multiple 1-person intentionalities. I see this more general stuation as
being the exact analogy of the problem of time in physics and given my
interest in that problem I am engaging in this discussion. ;-)


 For all transformation T you can generalize and find a program which
 computes T applied to itself. Simple reproduction is the particular case
 when T = the identity transformation: take a new duplicator which
 apply to any X, written DX, gives T applied to a description of XX, that
 is T(XX). Now DD gives T(DD). DD gives T applied to itself.

 So you get self-referential machines by the substitution of some
 [variable of some transformation] by duplicator applied to themselves.


[SPK]

Ok, but where is the notion of persistence that is implicit in the
chain:

 take a new duplicator which
 apply to any X, written DX, gives T applied to a description of XX, that
 is T(XX). Now DD gives T(DD). DD gives T applied to itself.

There is obviously a transitive property here since we have to both
consider

Re: I the mirror

2003-01-22 Thread Stephen Paul King
Dear Bruno,

Thank you for the reference to the Case papers. It is ironic that his
argument makes the case for the subtle issue that I am trying to point out
to you, that there is a grave problem with your model.

In http://www.cis.udel.edu/~case/self-ref.html we find a very
informative discussion of self-reference and the way that infinite
regression is avoided by using an external aspect to act as a
mirror/sketch pad for the machine to use as a self-referential imaging
system. While I do have some reservation regarding the assumption that N -
N functions can completely capture physics and the exclusive usage of Well
founded statements in mathematics, I propose to set them aside for the sake
of a discussion.

Your model, as I understand it, would seem to make the mirror/ sketch
pad to be a derivative or epiphenomenona of the UD, e.g. that physicality
itself is merely derived from the intetionality of arithmetic statements,
what x implies about y. My argument is that if physicality is mere
epiphenomenona, is it sufficient to merely have a belief by S that x
implies y to have a causal consequence on the possible behavior of S, such
that if x did not imply y behavior would be 3-person distinguishable?
What I seem to be getting at is how do you relate 1-uncertainty to
3-person belief? I see the paper by Pratt that I have mentioned before makes
some headway on this question, but have not seen any of your comments about
this.

Kindest regards,

Stephen

- Original Message -
From: Bruno Marchal [EMAIL PROTECTED]
To: Colin Hales [EMAIL PROTECTED]; [EMAIL PROTECTED]
Sent: Tuesday, January 21, 2003 3:21 AM
Subject: Re: I the mirror



 At 11:59 +1100 21/01/2003, Colin Hales wrote:


 This is a query placed as a result of failing to succeed to find answers
 when googling my way around the place for a very long time (2 years). I
am
 about to conclude that a) no such discourse exists or b) that it is
 disguised in a form of physics/math that my searching has not uncovered.
 
 I know it is off-topic but I thought I'd run it by you folk as the most
 eclectic agglomerators of knowledge in the multiverse. Off-list replies
 welcome - keep the noise down and all that.
 
 
 Q. What branch of science has ascertained the role and status of the
image
 in a first person perspective of a mirror? .ie. 'be' the mirror.
 
 
 The answer 'there ain't one as far as I know' is as acceptable as
anything.
 I just need to know what's out there. If there's nothing there then I
take
 it I'm in that breezy lonely spot past the front lines of epistemology
and
 trundle on assuming (a) above.


 As far as I understand the question it seems to me that the answer
 is intensional recursion theory. My own approach to epistemology
 has been based on it, especially through the work of John Case.
 Fortunately or unfortunately, the modal logics of self-reference (G, G*)
 can be used as a sort of shortcut so that I am no more relying
 directly on the, although very beautiful, work by John Case.
 A good starting point is http://www.cis.udel.edu/~case/self-ref.html
 Note that it is not really first person perspective of a mirror, at
least
 as I define first person because my first person is just invisible
 for all third persons and so cannot be seen in a mirror.
 First persons share this property with vampires!

 One day I will put my paper amoeba, planaria,
 and dreaming machine on my web page, because it shows the relationship
 between Case's use of the mirror in abstract biology and the loebian
machine
 psychology.

 Hoping that helps.

 Bruno







Re: I the mirror

2003-01-22 Thread Bruno Marchal
Hi Stephen,

At 10:52 -0500 22/01/2003, Stephen Paul King wrote:

Dear Bruno,

Thank you for the reference to the Case papers. It is ironic that his
argument makes the case for the subtle issue that I am trying to point out
to you, that there is a grave problem with your model.

In http://www.cis.udel.edu/~case/self-ref.html we find a very
informative discussion of self-reference and the way that infinite
regression is avoided by using an external aspect to act as a
mirror/sketch pad for the machine to use as a self-referential imaging
system. While I do have some reservation regarding the assumption that N -
N functions can completely capture physics and the exclusive usage of Well
founded statements in mathematics, I propose to set them aside for the sake
of a discussion.




BM I am not sure which external aspect you allude to. Case'w work relies
on the second recursion of Kleene, which gives easy way to construct
self-referential programs. The mirror is really in machine's head.
The basic idea is very easy. Let D be a duplicator in the sense that
the program D applied to X, written DX, gives a description of X apply to
itself, that is XX.
So DA gives AA. DB gives BB. DC gives CC, ...

What gives DD?


Yes. DD gives DD. It's an example of a duplicating program.

For all transformation T you can generalize and find a program which
computes T applied to itself. Simple reproduction is the particular case
when T = the identity transformation: take a new duplicator which
apply to any X, written DX, gives T applied to a description of XX, that
is T(XX). Now DD gives T(DD). DD gives T applied to itself.

So you get self-referential machines by the substitution of some
[variable of some transformation] by duplicator applied to themselves.

You could say that the self-referentiality comes from the language
chosen, but working with Rogers numerical representations, the \phi_i,
you can show the reasoning constructive and machine, or programming
language, independent.

What remains true is that any self-referential program needs a universal
program to run it, for making the self-referentiality manifest.
I have never deny that.

What the universal dovetailer argument shows is that from the
point of view of the machine, if she looks closely enough to its probable
local implementation, that is near its comp substitution level, she will
describe not one universal machines, but MANY one.

QM confirms that. But people  have invented selecting rules, like
the collapse of the wave or some guiding potential, making things look
more Aristotelian. But Everett comes and said why for?.

And I come, if you want, and just say that if you take seriously the
Everett comp then you can ask why for? even for the Schroedinger Equation.

Not because you should dismiss it, but because if it is true, it should
be derivable from LOGIC + ARITHMETIC. That the result of the UDA proof.







SPK:
Your model, as I understand it, ...





BM:
But I'm afraid you miss the point. It is not a model. It is not
a theory.
It is a theorem, a deductive argument. If you don't understand it,
you should tell me at which step of the reasoning you are stuck.

I am not so interested in knowing if the hypotheses are true. I am
enough glad for showing them refutable.

When a computationalist practitioners accepts an artificial digital
brain, he does not ask for a model in its head. He asks and hope for
the real thing.

In case he survives (= COMP) he can bet he is immaterial. He can choose
is body and travel on the nets, without any stable body. The UDA result
is that this imateriality is contagious, in some sense, the environment
cannot be more material than himself. Descartes, Hume, and Kant have
partially describe this.


SPK:

would seem to make the mirror/ sketch
pad to be a derivative or epiphenomenona of the UD,



BM:
Why epiphenomena? They are phenomenal appearances, stable patterns in
consistent machines memories. Dreams if you want, but stable
dreams in which they have partial control ...
And thanks to the G/G* difference we get communicable and
incommunicable truth. Thanks to the Z/Z* difference we get
room for both physical measure and physical sensations, as
uncommunicable physical result of (self)measurement.


SPK:

e.g. that physicality
itself is merely derived from the intetionality of arithmetic statements,


BM:
Yes.

SPK:

what x implies about y. My argument is that if physicality is mere
epiphenomenona, is it sufficient to merely have a belief by S that x
implies y to have a causal consequence on the possible behavior of S, such
that if x did not imply y behavior would be 3-person distinguishable?


BM:
... would be 1-person plural distinguishable (for the technical reason
that the quantum, seems to appear at the star level. I am not yet sure).
But you are right.  That is, if that is believable and consistent.
It is not that mind acts on matter, but it is more like the arithmetical
border of mind defines matter. Roughly 

Re: I the mirror

2003-01-21 Thread Bruno Marchal

At 11:59 +1100 21/01/2003, Colin Hales wrote:



This is a query placed as a result of failing to succeed to find answers
when googling my way around the place for a very long time (2 years). I am
about to conclude that a) no such discourse exists or b) that it is
disguised in a form of physics/math that my searching has not uncovered.

I know it is off-topic but I thought I'd run it by you folk as the most
eclectic agglomerators of knowledge in the multiverse. Off-list replies
welcome - keep the noise down and all that.


Q. What branch of science has ascertained the role and status of the image
in a first person perspective of a mirror? .ie. 'be' the mirror.


The answer 'there ain't one as far as I know' is as acceptable as anything.
I just need to know what's out there. If there's nothing there then I take
it I'm in that breezy lonely spot past the front lines of epistemology and
trundle on assuming (a) above.



As far as I understand the question it seems to me that the answer
is intensional recursion theory. My own approach to epistemology
has been based on it, especially through the work of John Case.
Fortunately or unfortunately, the modal logics of self-reference (G, G*)
can be used as a sort of shortcut so that I am no more relying
directly on the, although very beautiful, work by John Case.
A good starting point is http://www.cis.udel.edu/~case/self-ref.html
Note that it is not really first person perspective of a mirror, at least
as I define first person because my first person is just invisible
for all third persons and so cannot be seen in a mirror.
First persons share this property with vampires!

One day I will put my paper amoeba, planaria,
and dreaming machine on my web page, because it shows the relationship
between Case's use of the mirror in abstract biology and the loebian machine
psychology.

Hoping that helps.

Bruno




RE: I the mirror

2003-01-20 Thread Ben Goertzel

Hi,

Onar Aam wrote some nice essays on mirrors and awareness, a few years back.
He had a quite elaborate theory.

Unfortunately, his website seems not to be up anymore.

However, if you e-mail him, he will probably send them to you.  A year ago
his e-mail was [EMAIL PROTECTED], but I'm not 100% sure it's current.

-- Ben


 -Original Message-
 From: Colin Hales [mailto:[EMAIL PROTECTED]]
 Sent: Monday, January 20, 2003 7:59 PM
 To: [EMAIL PROTECTED]
 Subject: I the mirror


 Dear Everythingers,

 This is a query placed as a result of failing to succeed to find answers
 when googling my way around the place for a very long time (2 years). I am
 about to conclude that a) no such discourse exists or b) that it is
 disguised in a form of physics/math that my searching has not uncovered.

 I know it is off-topic but I thought I'd run it by you folk as the most
 eclectic agglomerators of knowledge in the multiverse. Off-list replies
 welcome - keep the noise down and all that.


 Q. What branch of science has ascertained the role and status of the image
 in a first person perspective of a mirror? .ie. 'be' the mirror.


 The answer 'there ain't one as far as I know' is as acceptable as
 anything.
 I just need to know what's out there. If there's nothing there then I take
 it I'm in that breezy lonely spot past the front lines of epistemology and
 trundle on assuming (a) above.

 Thanks in advance.

 Cheers,

 Colin Hales






Re: I the mirror

2003-01-20 Thread James N Rose
The ancient Egyptians were the first to identify
'mirror' with first-person experience, some 5000
years ago.

The word ankh means both 'life' and 'mirror'
since full living-reality was what visually
appears represented on the surface of 'mirrors'.

Whether there was 'self-experience' there or not
was another issue; it was sufficient to observe
tht identical 'observable phenomena' were there
in both 'places'.

:-)


Jamie Rose
Ceptual Institute




Colin Hales wrote:
 
 Dear Everythingers,
 
 This is a query placed as a result of failing to succeed to find answers
 when googling my way around the place for a very long time (2 years). I am
 about to conclude that a) no such discourse exists or b) that it is
 disguised in a form of physics/math that my searching has not uncovered.
 
 I know it is off-topic but I thought I'd run it by you folk as the most
 eclectic agglomerators of knowledge in the multiverse. Off-list replies
 welcome - keep the noise down and all that.
 
 Q. What branch of science has ascertained the role and status of the image
 in a first person perspective of a mirror? .ie. 'be' the mirror.
 
 The answer 'there ain't one as far as I know' is as acceptable as anything.
 I just need to know what's out there. If there's nothing there then I take
 it I'm in that breezy lonely spot past the front lines of epistemology and
 trundle on assuming (a) above.
 
 Thanks in advance.
 
 Cheers,
 
 Colin Hales