Re: is this as easy as i think? finite complement topology

In article <dnad2m$5kp$1@xxxxxxxxxxxxxxxxxx>, Bob <Bob@xxxxxxxxxx> wrote:
>
>> So, first, if X is empty then this is easy: just pick any one U_i and
>> that will do (can you see why?)
>>
>
>no i cannot seem to see this immediately

WHAT are you trying to do? You are trying to show that there is a way
to choose a finite number of U_i so that their union contains X.

Is it REALLY that hard to find a finite number of U_i that contain the
empty set?


--
======================================================================
"It's not denial. I'm just very selective about
what I accept as reality."
--- Calvin ("Calvin and Hobbes")
======================================================================

Arturo Magidin
magidin@xxxxxxxxxxxxxxxxx

.

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