Talk:Perfect set property
Hi, the link doesn't work, please correct it. Thanks. Miaoku 12:03, 12 August 2007 (UTC)Reply
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Broken link
Hi, the link doesn't work, please correct it. Thanks. Miaoku 12:03, 12 August 2007 (UTC)
A pathetically bad idea
The word "countable" in mathematics — at least in English-speaking countries — almost always means "of cardinality equal to aleph0."
Sometimes it means "of cardinality either finite or aleph0."
That is a very old usage, not at all current.
But it is a very bad idea to use it in the latter sense when that is NOT the prevailing sense in which the word is used today.
Unfortunately, that is how this article uses the word. 2601:200:C000:1A0:DD5F:A996:6B34:D43C (talk) 23:37, 17 August 2021 (UTC)
- I'm sorry, you're simply incorrect. The most common usage includes finite sets. --Trovatore (talk) 00:39, 18 August 2021 (UTC)
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