Talk:Lower limit topology

untitled

On PlanetMath, someone asked whether the Sorgenfrey line is a Baire space. Is it? AxelBoldt 17:38, 16 Dec 2003 (UTC)

It is, see

http://at.yorku.ca/cgi-bin/bbqa?forum=homework_help_2003&task=show_msg&msg=0878.0001.0001

which I posted on the topology question and answer board

http://at.yorku.ca/cgi-bin/bbqa

Henno Brandsma

(moderator for the above site)

Thanks! I put the information in the article. AxelBoldt 20:05, 22 Nov 2004 (UTC)

Compact subsets

In the article it is stated that a subset of the Sorgenfrey line is compact iff it is bounded from below and well-ordered w.r.t. >. However, the set $\{{\frac {1}{n}}:n\in \mathbb {N} \}$ is bounded from below (by 0), and every nonempty set has a maximum, but is not compact since it is not compact in the Euclidean topology on $\mathbb {R}$. Samuel Tiersma (talk) 07:04, 20 August 2024 (UTC)