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At the end of the section on Projective Sets, one suddenly starts talking about objects such as $L$ and $\mathcal{P}(\omega)$. However, these have not been defined. The last two paragraphs of the section are of a completely different level than the more introductory paragraphs that precede them. Nmdwolf (talk) 16:49, 12 December 2023 (UTC)[reply]
