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Wild 'Sets'
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10-18-2010, 03:25 PM
Post: #1
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Wild 'Sets'
(1) $\beta=\{x \mid x \; \text{contains at least 10 elements}\}\;$ ($\beta \in \beta$)
(2) $ b = \{x \mid x \notin x\} $ (1902 Russell $b \in b \Leftrightarrow b \notin b$) |
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