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Re: [zzdev] Re: [zzdev] Subspaces & ZZ versioning
- To: zzdev@xxxxxxxxxx
- Subject: Re: [zzdev] Re: [zzdev] Subspaces & ZZ versioning
- From: Antti-Juhani Kaijanaho <gaia@xxxxxx>
- Date: Wed, 27 Dec 2000 13:16:16 +0200
- In-reply-to: <3A49CA10.BF499623@xxxxxx>; from b.fallenstein@xxxxxx on Wed, Dec 27, 2000 at 11:53:03AM +0100
- Mail-followup-to: zzdev@xxxxxxxxxx
- References: <3A342176.B03A9B9F@xxxxxx> <20001211035226.B3587@xxxxxxxxxxxxxx> <3A3E67F4.3C00B087@xxxxxx> <20001219124905.A7717@xxxxxxxxxxxxxx> <3A41351B.BA16A23D@xxxxxx> <20001221111527.B29066@xxxxxxxxxxx> <3A425394.C54EF3AC@xxxxxx> <3A478411.4B27CC31@xxxxxx> <20001227113520.A4366@xxxxxxxxxxx> <3A49CA10.BF499623@xxxxxx>
- Sender: Antti-Juhani Kaijanaho <ajk@xxxxxxxxxxx>
On 20001227T115303+0100, Benjamin Fallenstein wrote:
> For general use in versioning etc., I would not use the closuring: for
> example, you'd want to be able to take the whole tree starting at the
> "AllViews" cell as a subspace, but it isn't a closed set in any way that
> makes sense. (Of course it's a closed set with respect to the dimensions
> "d.i-don't-exist" and "d.me-neither", but that doesn't help us. ;))
Well, just define an empty set as the set of hard dimensions. Then there
will be no closures.
> I agree that def 2 is more natural, but there will be cases where we
> need 1, so I wouldn't totally lock that out. What about calling
> subspaces according to 2 "standard subspace?"
Or something similar. I had the same thought.
> I've been thinking a bit about how to phrase the definitions, and I
> think I'd prefer a phrasing that stresses we either select a number of
> cells and a number of connections, or a number of cells and a number of
> dimensions, i.e.:
> Z' is a subspace of Z with respect to a set of cells C and a set of
> connections N iff...
> Z' is a standard subspace of Z with respect to a set of cells C and
> a set of dimensions D iff...
I've been writing some notes about this. They're very mathish and they're
in LaTeX, but I could commit them if somebody wants to see them.
And BTW, they are full of errors :-)
%%% Antti-Juhani Kaijanaho % gaia@xxxxxx % http://www.iki.fi/gaia/ %%%