Question

Does forcing preserve the least undefinable ordinal from a model of ZFC?

score 217 · Answer 1 · 2016-03-06 07:24:07

217

Views

Does forcing preserve the least undefinable ordinal from a model of ZFC?

Published on 06 Mar 2016 - 7:24

score 313 · Answer 2 · 2016-03-08 07:53:46

313

Views

Equivalence of forcing notions from dense embedding between them

Published on 08 Mar 2016 - 7:53

score 143 · Answer 3 · 2016-03-14 17:31:25

143

Views

Do the relative consistency results involving the axiom of choice use completeness of FOL?

Published on 14 Mar 2016 - 17:31

score 152 · Answer 4 · 2016-03-23 17:29:40

152

Views

Given two forcing extensions, is there a common extension?

Published on 23 Mar 2016 - 17:29

score 150 · Answer 5 · 2016-04-02 09:00:50

150

Views

Separative forcings add new sets

Published on 02 Apr 2016 - 9:00

score 178 · Answer 6 · 2026-03-26 13:49:43

178

Views

Understanding sets added by a forcing notion

Published on 26 Mar 2026 - 13:49

score 409 · Answer 7 · 2016-04-13 11:52:33

409

Views

Forcing exercise from Kunen's book

Published on 13 Apr 2016 - 11:52

score 157 · Answer 8 · 2016-04-14 11:11:22

157

Views

Do the notations for relative constructible universe and for forcing extention coincide?

Published on 14 Apr 2016 - 11:11

score 138 · Answer 9 · 2016-04-15 12:30:39

138

Views

Preserving weakly inaccesible cardinals in generic extensions

Published on 15 Apr 2016 - 12:30

score 104 · Answer 10 · 2016-04-26 17:55:39

104

Views

Countable Transitive model where $\exists A\subset \omega_1\;(L[A]\vDash\, \neg CH)$

Published on 26 Apr 2016 - 17:55

score 671 · Answer 11 · 2016-04-27 17:01:12

671

Views

$\kappa$-closed forcing preserves stationary sets.

Published on 27 Apr 2016 - 17:01

score 169 · Answer 12 · 2016-04-28 15:14:33

169

Views

GCH is preserved when forcing with $Fn(\lambda,\kappa)$.

Published on 28 Apr 2016 - 15:14

score 387 · Answer 13 · 2016-04-29 09:11:29

387

Views

Kunen exercise III.8.21

Published on 29 Apr 2016 - 9:11

score 205 · Answer 14 · 2016-05-01 09:16:51

205

Views

Enlarging the continuum with $\sigma$-centered forcing

Published on 01 May 2016 - 9:16

score 236 · Answer 15 · 2016-05-04 14:43:05

236

Views

Forcing and violation of the $GCH$ at $\aleph_\omega$

Published on 04 May 2016 - 14:43

List Question

Does forcing preserve the least undefinable ordinal from a model of ZFC?

Equivalence of forcing notions from dense embedding between them

Do the relative consistency results involving the axiom of choice use completeness of FOL?

Given two forcing extensions, is there a common extension?

Separative forcings add new sets

Understanding sets added by a forcing notion

Forcing exercise from Kunen's book

Do the notations for relative constructible universe and for forcing extention coincide?

Preserving weakly inaccesible cardinals in generic extensions

Countable Transitive model where $\exists A\subset \omega_1\;(L[A]\vDash\, \neg CH)$

$\kappa$-closed forcing preserves stationary sets.

GCH is preserved when forcing with $Fn(\lambda,\kappa)$.

Kunen exercise III.8.21

Enlarging the continuum with $\sigma$-centered forcing

Forcing and violation of the $GCH$ at $\aleph_\omega$

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