List questions from elementary-set-theory

Published on 02 Apr 2026 - 23:07

61

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Extending a one to one correspondence between sets

Published on 31 Mar 2026 - 2:08

45

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Confused by what this function image set is.

Published on 31 Mar 2026 - 6:55

355

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Uncountable unions of nested sets in a sigma field

Published on 07 Apr 2026 - 14:40

44

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Intersection of $\emptyset$ and problem about listing definition of sets.

Published on 31 Mar 2026 - 4:27

21

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Query on the meaning of max notation

Published on 31 Mar 2026 - 6:37

82

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Find the set ∆X

Published on 05 Apr 2026 - 8:38

1k

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Reflexive, symmetric, transitive, antisymmetric, equivalence or partial order

Published on 25 Mar 2026 - 1:23

271

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Not understanding a claim of Bourbaki about inverse limits in "Theory of Sets"

Published on 29 Mar 2026 - 10:08

67

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Set Theory: $ A −B $, $ (A ∪ B)^{c} $, $ (A^{c} ∩ B^{c}) $

Published on 31 Mar 2026 - 4:39

226

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On the definition of Inductive set. Equivalences

Published on 31 Mar 2026 - 14:52

474

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Proof using Laws of Sets

Published on 31 Mar 2026 - 10:21

218

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Is subset property transitive?

Published on 18 Feb 2018 - 5:19

87

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Laws of Sets: Element Set Theory

Published on 31 Mar 2026 - 2:42

483

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Number of subsets with subscripts being a multiple of each other?

Published on 31 Mar 2026 - 14:51

List Question

Is the null/empty set both a subset of and disjoint from every non-empty set?

Extending a one to one correspondence between sets

Confused by what this function image set is.

Uncountable unions of nested sets in a sigma field

Intersection of $\emptyset$ and problem about listing definition of sets.

Query on the meaning of max notation

Find the set ∆X

Reflexive, symmetric, transitive, antisymmetric, equivalence or partial order

Not understanding a claim of Bourbaki about inverse limits in "Theory of Sets"

Set Theory: $ A −B $, $ (A ∪ B)^{c} $, $ (A^{c} ∩ B^{c}) $

On the definition of Inductive set. Equivalences

Proof using Laws of Sets

Is subset property transitive?

Laws of Sets: Element Set Theory

Number of subsets with subscripts being a multiple of each other?

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