Question

Question on the proof that the sum of two Cantor discontinuums on the $[0,1]$ is $[0,2]$.

score 192 · Answer 1 · 2013-09-15 18:36:17

192

Views

Question on the proof that the sum of two Cantor discontinuums on the $[0,1]$ is $[0,2]$.

Published on 15 Sep 2013 - 18:36

score 691 · Answer 2 · 2026-03-25 15:41:07

691

Views

How is the Kleene normal form theorem for $\Sigma^1_1$ relations proved in RCA0?

Published on 25 Mar 2026 - 15:41

score 1k · Answer 3 · 2013-09-20 13:31:04

1k

Views

Proof that the space of infinite 01-sequences (Cantor-space) is totally disconnected

Published on 20 Sep 2013 - 13:31

score 154 · Answer 4 · 2013-09-22 19:59:35

154

Views

Selection Principles Question /Cantor Set

Published on 22 Sep 2013 - 19:59

score 1k · Answer 5 · 2013-09-29 22:22:05

1k

Views

Borel hierarchy doesn't "collapse" before $\omega_1$

Published on 29 Sep 2013 - 22:22

score 117 · Answer 6 · 2013-10-13 15:06:16

117

Views

Are the perfect-free sets countable?

Published on 13 Oct 2013 - 15:06

score 2.2k · Answer 7 · 2013-10-21 12:42:49

2.2k

Views

Can sets of cardinality $\aleph_1$ have nonzero measure?

Published on 21 Oct 2013 - 12:42

score 161 · Answer 8 · 2013-10-21 14:32:04

161

Views

Why is the boolean closure of $F_{\sigma}$-sets not in $F_{\sigma}\cap G_{\delta}$?

Published on 21 Oct 2013 - 14:32

score 331 · Answer 9 · 2013-10-25 18:16:00

331

Views

Any two polish atomless probability spaces are isomorphic

Published on 25 Oct 2013 - 18:16

score 112 · Answer 10 · 2013-10-27 01:13:22

112

Views

Example of when $\mathcal{B}(X\times Y) \neq \mathcal{B}(X) \times\mathcal{B}(Y)$ but $|X|,|Y| \leq |\mathbb{R}|$

Published on 27 Oct 2013 - 1:13

score 510 · Answer 11 · 2013-11-06 21:23:08

510

Views

Can a meager linear subspace be written as a countable increasing union of nowhere dense subspaces?

Published on 06 Nov 2013 - 21:23

score 836 · Answer 12 · 2013-11-08 14:06:07

836

Views

Any two uncountable Borel subsets of $[0,1]$ Borel isomorphic

Published on 08 Nov 2013 - 14:06

score 38 · Answer 13 · 2013-11-09 06:26:30

38

Views

Why is $[T]$ closed in $\lceil{T}\rceil$ in which $T$ is a countable tree?

Published on 09 Nov 2013 - 6:26

score 302 · Answer 14 · 2013-11-18 18:58:49

302

Views

Uncountably many non-homeomorphic compact subsets of the circle

Published on 18 Nov 2013 - 18:58

score 1.2k · Answer 15 · 2013-11-20 09:07:56

1.2k

Views

Measurability of the pushforward operator on measures

Published on 20 Nov 2013 - 9:07

List Question

Question on the proof that the sum of two Cantor discontinuums on the $[0,1]$ is $[0,2]$.

How is the Kleene normal form theorem for $\Sigma^1_1$ relations proved in RCA0?

Proof that the space of infinite 01-sequences (Cantor-space) is totally disconnected

Selection Principles Question /Cantor Set

Borel hierarchy doesn't "collapse" before $\omega_1$

Are the perfect-free sets countable?

Can sets of cardinality $\aleph_1$ have nonzero measure?

Why is the boolean closure of $F_{\sigma}$-sets not in $F_{\sigma}\cap G_{\delta}$?

Any two polish atomless probability spaces are isomorphic

Example of when $\mathcal{B}(X\times Y) \neq \mathcal{B}(X) \times\mathcal{B}(Y)$ but $|X|,|Y| \leq |\mathbb{R}|$

Can a meager linear subspace be written as a countable increasing union of nowhere dense subspaces?

Any two uncountable Borel subsets of $[0,1]$ Borel isomorphic

Why is $[T]$ closed in $\lceil{T}\rceil$ in which $T$ is a countable tree?

Uncountably many non-homeomorphic compact subsets of the circle

Measurability of the pushforward operator on measures

Trending Questions

Popular # Hahtags

Popular Questions