Question

is there some statement equivalent to consistency of $ZFC$ in $ZFC$?

score 187 · Answer 1 · 2026-04-23 13:48:37

187

Views

is there some statement equivalent to consistency of $ZFC$ in $ZFC$?

Published on 23 Apr 2026 - 13:48

score 78 · Answer 2 · 2026-04-14 23:42:30

78

Views

Let $\rm R$ be the relation on the set $A$:

Published on 14 Apr 2026 - 23:42

score 134 · Answer 3 · 2026-04-12 20:15:45

134

Views

CH implies the existence of an $\omega_2$-Aronszajn tree

Published on 12 Apr 2026 - 20:15

score 52 · Answer 4 · 2026-04-16 09:15:53

52

Views

Is this true $\exists x\forall y (x + y > 8)$

Published on 16 Apr 2026 - 9:15

score 164 · Answer 5 · 2026-04-14 13:26:04

164

Views

If a poset is $\sigma$-centered, so what can we say about $P\times P$

Published on 14 Apr 2026 - 13:26

score 161 · Answer 6 · 2026-04-15 21:31:30

161

Views

second-order indescribable - inaccessible cardinals

Published on 15 Apr 2026 - 21:31

score 51 · Answer 7 · 2026-04-11 20:41:16

51

Views

Is this true? $\forall x\exists y ((x + y \in X) \vee (x - y)\in Z)$

Published on 11 Apr 2026 - 20:41

score 65 · Answer 8 · 2026-04-15 04:13:29

65

Views

$\exists x\forall y ((x + y \in X) \wedge (x - y)\in Z)$

Published on 15 Apr 2026 - 4:13

score 111 · Answer 9 · 2026-04-11 20:12:55

111

Views

Positive Lebesgue measure Poset - $\sigma$-linked

Published on 11 Apr 2026 - 20:12

score 83 · Answer 10 · 2026-04-09 00:52:19

83

Views

An exercise from Herrlich

Published on 09 Apr 2026 - 0:52

score 147 · Answer 11 · 2026-04-10 08:11:56

147

Views

Ultrafilters: normality implying $\kappa$-completeness?

Published on 10 Apr 2026 - 8:11

score 46 · Answer 12 · 2026-04-08 19:30:43

46

Views

Question about singleton & inclusion

Published on 08 Apr 2026 - 19:30

score 71 · Answer 13 · 2026-04-11 06:20:46

71

Views

Equivalence between beth number, $H$ and $R$ function - singular case

Published on 11 Apr 2026 - 6:20

score 422 · Answer 14 · 2026-04-14 09:08:23

422

Views

Does every graph without isolated vertices have a minimal edge cover?

Published on 14 Apr 2026 - 9:08

score 198 · Answer 15 · 2026-04-16 02:27:23

198

Views

If every $\kappa$-complete filter can be extended to a $\aleph_1$-complete ultrafilter, then some $\lambda\le\kappa$ is measurable

Published on 16 Apr 2026 - 2:27

List Question

is there some statement equivalent to consistency of $ZFC$ in $ZFC$?

Let $\rm R$ be the relation on the set $A$:

CH implies the existence of an $\omega_2$-Aronszajn tree

Is this true $\exists x\forall y (x + y > 8)$

If a poset is $\sigma$-centered, so what can we say about $P\times P$

second-order indescribable - inaccessible cardinals

Is this true? $\forall x\exists y ((x + y \in X) \vee (x - y)\in Z)$

$\exists x\forall y ((x + y \in X) \wedge (x - y)\in Z)$

Positive Lebesgue measure Poset - $\sigma$-linked

An exercise from Herrlich

Ultrafilters: normality implying $\kappa$-completeness?

Question about singleton & inclusion

Equivalence between beth number, $H$ and $R$ function - singular case

Does every graph without isolated vertices have a minimal edge cover?

If every $\kappa$-complete filter can be extended to a $\aleph_1$-complete ultrafilter, then some $\lambda\le\kappa$ is measurable

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