Re: discrete set

On Sat, 02 Feb 2008 07:46:14 -0800, Justinver wrote:

{1/n: n integer > 0 } and {0} are discrete but the union is not.

Yes, right, my mistake. Union of sets may not be discrete.

I think the sum is not

Huh, wait. What do you mean by "a sum of sets"? I thought previously about
sum as a union and about union as an intersection, so I said "union is
discrete", but thought "intersection is discrete". What is a sum of sets?


DS.
.

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