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John Natawabe

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visits member for 8 months
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64 reputation
 bio website visits member for 8 months
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5 Questions

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6
 How to define countability of $\omega^{\omega}$ and $\omega_1$? in set theory?
2
 How to prove that $\epsilon_0$ exists?
1
 Confusion regarding Russell's paradox
1
 How does one prove that there are uncountable number of countable ordinals? [duplicate]
1
 How to prove that Cantor's normal form can produce all ordinal numbers

64 Reputation

+20 How to define countability of $\omega^{\omega}$ and $\omega_1$? in set theory?
+10 How to prove that $\epsilon_0$ exists?
+5 Confusion regarding Russell's paradox
+5 How does one prove that there are uncountable number of countable ordinals?
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