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Questions Tagged with "set theory" (Page 4)

Explore solved questions tagged with "set theory" or help others by answering their unsolved questions related to "set theory".

In which article/book chapter did Cantor, Hibert, and Poincare formally defined or directly discussed the term “potential infinity”?

1 answer

History of Science and Mathematics Asked 2 years ago

Translations of "Sur le théorème de Zorn"?

0 answer

History of Science and Mathematics Asked 2 years ago by user10553

About the notation of Axiom of Regularity

1 answer

Mathematics Asked 3 years ago by lockedscope

How badly can the GCH fail globally?

1 answer

MathOverflow Asked 3 years ago by Sam Roberts

Let $f:ℝ→ℕ$ be onto. Does there exist a $g:ℕ→ℝ$ such that $f(g(b))=b$ for all $b∈ℕ$?

2 answer

Mathematics Asked 3 years ago

Infimum of partitions-set

2 answer

Mathematics Asked 3 years ago by Zuy

If there is a "worldly ordinal," then must there be a worldly cardinal?

2 answer

Mathematics Asked 3 years ago by Jesse Elliott

In what ways is a set's inversion different than its prime form?

3 answer

Music: Practice & Theory Asked 3 years ago by Michael Seltenreich

Examples of countable and uncountable Bernstein sets

1 answer

Mathematics Asked 3 years ago by Newman

To prove an apparently obvious statement: if $A_1subseteq A_2 subseteq ... subseteq A_n$, then $bigcup_{i=1}^n A_i = A_n$

2 answer

Mathematics Asked 3 years ago

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