Re: How is this collection called?
From: Mikito Harakiri <mikharakiri_at_iahu.com>
Date: Wed, 31 Mar 2004 13:45:32 -0800
Message-ID: <H7Hac.37$rc5.148_at_news.oracle.com>
Date: Wed, 31 Mar 2004 13:45:32 -0800
Message-ID: <H7Hac.37$rc5.148_at_news.oracle.com>
"Rick Decker" <rdecker_at_hamilton.edu> wrote in message
news:406A2612.40402_at_hamilton.edu...
> (No "natural" collection type + aggregation jumps to mind.)
>
> Of course one could include another operator and ask for
> distributivity....
I think you've got it backwards: + is the aggregation (then we should call empty set/bag/list 0, of course). The multiplication * is cartesian product. Received on Wed Mar 31 2004 - 23:45:32 CEST