Let's define S as a 'normal' set if [tex]\neg(S \in S)[/tex]. Now let's look at the set of all normal sets N. If N is normal, then is belongs to the set of all normal sets N, and therefore it is not normal. On the other hand, if N is not normal, then it doesn't belong to the set of all normal sets N, and therefore it's normal. I'm very confused (or very dumb) :)(adsbygoogle = window.adsbygoogle || []).push({});

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# 'normal' set paradox

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