Re: Intended meaning

From: Sergio Antoy <antoy_at_redstar.cs.pdx.edu>
Date: Wed, 07 Nov 2007 12:40:22 -0800 (PST)

Wolfram,

Thanks for your comments.

> > Is it  related to the property
> > that C[e ? e'] should be equivalent to C[e] ? C[e'],
> > for any context C and expressions e, e' ?
> >
> >  I remark that the property is certainly true
> > for CRWL programs. An interesting point is that the
> > proof of it is easy if one uses semantic-based reasonings.
> > Thus, an operational procedure can use the above equivalence
> > while preserving the semantics.
>
> Since generators typically introduce alternatives recursively,
> this equivalence has to be used with utmost care operationally ---
> otherwise, applying this equivalence may just happily replicate redexes in C,
> without making progress.

Could you make an example to help me understanding?

> This could be alleviated using second-order sharing for C[_]
> in C[e] ? C[e'], similar to optimal reduction in lambda calculi ---
> is anybody aware of any work in this direction for FLP?

I do not know second-order sharing. Another example here would be
useful to understand your suggestion.

Thanks,
Sergio
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Received on Thu Nov 08 2007 - 09:17:27 CET

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