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Home -> Community -> Usenet -> comp.databases.theory -> Re: More on lists and sets
David Cressey wrote:
[...]
>
> Let's try a few more cases:
>
> [4, 3, 2, 1] intersect [2, 4, 6, 8] == [4, 2]
> [2, 4, 6, 8] intersect [4, 3, 2, 1] == [2, 4]
>
> Are these right?
Yes.
>
> Does this mean that list intersection is not commutative?
Yes.
>
Received on Tue Mar 28 2006 - 13:10:00 CST
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