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I think that there is no integer n such that n = n +1 By this, I think that Espsylon should be added as a comment to the actual solution.
Actually, $\epsilon$ is used for empty strings. You probably meant that the solution would be the empty set, denotated by $\emptyset$. Notice that { $\epsilon$ } $\neq \emptyset$
I think that there is no integer n such that n = n +1
By this, I think that Espsylon should be added as a comment to the actual solution.
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