Re: A Simple Notation
From: paul c <toledobythesea_at_oohay.ac>
Date: Sat, 07 Jul 2007 15:30:32 GMT
Message-ID: <skOji.94053$NV3.69985_at_pd7urf2no>
...
>
>
> Why limit yourself to what can be represented in a computer? An algebra
> that supports relations with infinite cardinality or degree can certainly
> support any relation that can be represented in a computer.
Date: Sat, 07 Jul 2007 15:30:32 GMT
Message-ID: <skOji.94053$NV3.69985_at_pd7urf2no>
Brian Selzer wrote:
> "paul c" <toledobythesea_at_oohay.ac> wrote in message
> news:PAAji.92566$xq1.59731_at_pd7urf1no...
>
>>Brian Selzer wrote: >> >>>"David Cressey" <cressey73_at_verizon.net> wrote in message >>>news:eirji.2$475.1_at_trndny04... >>>
...
>>I wonder when, in the course of the usual human affairs as they involve >>the basic relational dbms op's, does it make sense to think of infinite >>domains? Isn't it usually sufficient, as far as algebra is concerned, to >>pretend they are finite? >>
>
>
> Why limit yourself to what can be represented in a computer? An algebra
> that supports relations with infinite cardinality or degree can certainly
> support any relation that can be represented in a computer.
p Received on Sat Jul 07 2007 - 17:30:32 CEST