Talk:Countable chain condition
Add topicLatest comment: 15 years ago by Set theorist in topic duplication with forcing article
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upwards and downwards
[edit]it would be great to get an explanation of _what_ the upwards/downwards ccc are, if they are not equivalent. Zero sharp 20:31, 30 August 2007 (UTC)
This topic is described in Forcing (set theory)#The countable chain condition. Should that material be moved here? Set theorist (talk) 09:31, 25 October 2010 (UTC)