7:00 AM
@ArthurFischer You pointed out (correctly) that an older question is very similar to the question I have posted recently.
The only difference is that the question asks about examples of the type $A\setminus B$, where $B$ is countable and $A$ is uncountable.
But as you can see some answers, including the answer that is accepted, are about larger cardinalities, too.
(From the two options I would prefer closing. Duplicate questions are still useful when searching for questions.)
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