Re: closed set with measure zero
- From: israel@xxxxxxxxxxx (Robert Israel)
- Date: 11 May 2005 18:04:41 GMT
In article <d5taff$l21$1@xxxxxxxxxxxxxxxxxxx>,
Keith A. Lewis <klewis@xxxxxxxxxxxxxxxx> wrote:
>Side 2: The set is constructed by taking an uncountable continuum and
>subtracting a countable set of discrete points from it, which divides it
>into a countable set of, errr, "zero-length intervals" for lack of a better
>term.
Nonsense. If you remove a countable dense set from an interval of reals,
what remains is an _uncountable_ set. The connected components of this
set are single points. So you have divided it into an uncountable set
of "zero-length intervals".
Robert Israel israel@xxxxxxxxxxx
Department of Mathematics http://www.math.ubc.ca/~israel
University of British Columbia Vancouver, BC, Canada
.
- Follow-Ups:
- Re: closed set with measure zero
- From: Keith A. Lewis
- Re: closed set with measure zero
- References:
- closed set with measure zero
- From: Tim
- Re: closed set with measure zero
- From: Keith A. Lewis
- Re: closed set with measure zero
- From: David C . Ullrich
- Re: closed set with measure zero
- From: Keith A. Lewis
- closed set with measure zero
- Prev by Date: Re: abundance of irrationals!)
- Next by Date: Re: Help in answering news story on refutation of fermat's last theorem
- Previous by thread: Re: closed set with measure zero
- Next by thread: Re: closed set with measure zero
- Index(es):