Re: doubt



On Sun, 2 Dec 2007 07:29:50 -0800 (PST), kiranlimaye11@xxxxxxxxx
wrote:

is the union of uncountable collection of open intervals open set?

Yes.

how to prove it or disprove?

Hint: An element of the union of a collection of sets must be an
element of one of sets of that collection.

quasi
.