alt Hacker NewsTechnically speaking, because it's not a set, we should say it involves the collection of all sets that don't contain themselves. But then, who's asking...
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nurettin • yesterday at 11:50 PM
I'm asking. What prevents that collection from being a set?
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The paradox is about the set of all sets that do not contain themselves, or a theorem that such a set does not exist.
In the context of the paradox you need to call it a set, otherwise it would not be a paradox