Re: Let There Be Something

From: Bruno Marchal <marchal.domain.name.hidden>
Date: Tue, 8 Nov 2005 10:51:21 +0100

Hi Stephen,

> That is a fascinating claim! "...we could argue the UD is 0
> dimensional: it computes an undefined function with 0 arguments."
>     What is the quantity of computational resources required for such
> a computation?

Probably null. Provably so with the QM hypothesis or the comp hyp.

>  
>     A new question is born from your comment: Is your notion of a
> "dimension" flow from linear independence, like that of vectors? How
> does one define the notion of a "basis" in this computational
> dimension?

Yes, it is. Actually in computer science the notion of dimension is not
globally relevant.
See the "parametrisation theorem" or the "SMN theorem" in my "amoeba,
planaria and dreaming machines", or see a textbook like Cutland's one
(ref in my thesis). Such theorems make it possible to code m-variable
function by effective collection of n-variables function.
The combinators exploit this at the start(*)

Onward! ;)

Bruno

(*) see:
  COMBINATORS I is
http://www.escribe.com/science/theory/m5913.html
  COMBINATORS II is
http://www.escribe.com/science/theory/m5942.html
  COMBINATORS III is
http://www.escribe.com/science/theory/m5946.html
COMBINATORS IV is
http://www.escribe.com/science/theory/m5947.html

COMBINATORS V is
http://www.escribe.com/science/theory/m5948.html

http://iridia.ulb.ac.be/~marchal/
Received on Tue Nov 08 2005 - 04:53:59 PST

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