[CST-2] Strictness 99.8.7
Phebe Mann
pm258@hermes.cam.ac.uk
Fri, 1 Jun 2001 19:47:06 +0100 (BST)
Thanks Raymond
I'm under great stress at the moment, should have read carefully what you
wrote, I'm not saying yours is wrong, I'm seeing whether mine is correct
or not.
Phebe
On Fri, 1 Jun 2001, Raymond Chan wrote:
> Erm...Phebe, you've contradicted yourself (probably due to a typo), first
> time you had S on top and S' below, and second time you had S' on top and S
> below, but both times gave the condition S' is a subset of S; as far as I
> can see, your second solution says a similar thing to mine but more
> specifically.
> Mond
> ----- Original Message -----
> From: "Phebe Mann" <pm258@hermes.cam.ac.uk>
> To: <cst-2@srcf.ucam.org>
> Sent: Friday, June 01, 2001 5:28 PM
> Subject: Re: [CST-2] Strictness 99.8.7
>
>
> >
> > Moritz
> >
> > |' = capital gamma symbol,
> > --> (S) = an arrow with an S floating above it]
> > --> (S') = an arrow with an S' floating above it]
> > (SUB rule)
> > |' |- f : int^k -->(S') int
> > -----------------------------
> > |' |- f : int^k --> (S) int
> > where S' is a subset of S
> >
> > k = no. of parameter
> > S = set of parameters that are guaranteed to loop
> >
> > Phebe
> >
> > On Fri, 1 Jun 2001, M.Y.W.Y. Becker wrote:
> >
> > >
> > >
> > > --On 01 June 2001 17:03 +0100 Phebe Mann <pm258@hermes.cam.ac.uk> wrote:
> > > [...]
> > > > (SUB rule)
> > > > |' |- f : int^k --> (S) int if S' is a subset of S
> > > > -----------------------------
> > > > |' |- f : int^k --> (S') int
> > > > where S' is a subset of S
> > > [...]
> > >
> > > That's wrong. Raymond's answer was already 100% correct (I believe).
> > >
> > > Mo
> > >
> > >
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> >
> >
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