On Mon, 22 Oct 2007, Bill Page wrote:
| On 10/22/07, Gabriel Dos Reis <[EMAIL PROTECTED]> wrote:
| > On Mon, 22 Oct 2007, Bill Page wrote:
| >
| > | As I said, I want
| > |
| > | Product(1..9,1..4)
| > |
| > | to be a domain - the cross-product of two other domains.
| >
| > I do not think
| >
| > I want 1..9 to be a domain so that I can write
| > Product(1..9, 1..4) to be a cross product of two domains
| >
| > is an explanation of why `1..9' should be a domain.
|
| As I said earlier, I think the semantics of Product should be given
| categorically by the existence of the unique operation
|
| Product(X:Type, Y:Type): with ...
|
| product: (A:Type, A->X,A->Y) -> (A->%)
|
| as a categorical limit.
And I want executable code and typechecking.
On typeckeching, consider
for i in 1..9 repeat
-- ...
What are the semantics and type checking rules if 1..9 is a domain?
-- Gaby
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