set theory - Robuta Search

https://mathoverflow.net/questions/tagged/set-theory Newest 'set-theory' Questions - MathOverflow set theory newest questions mathoverflow https://mathoverflow.net/questions/510550/graphs-on-omega-with-2-aleph-0-automorphisms set theory - Graphs on $\omega$ with $2^{\aleph_0}$ automorphisms - MathOverflow Is there a connected graph $G= (\omega,E)$ with the following properties? There are $2^{\aleph_0}$ isomorphisms $\varphi:G\to G$, and $K_\omega$ does not embed... set theory graphs omega aleph mathoverflow https://mathoverflow.net/tags/set-theory/info 'set-theory' tag wiki - MathOverflow set theory tag wiki mathoverflow https://mathoverflow.net/search?q=user:554413+[set-theory] Posts matching 'user:554413 [set-theory]' - MathOverflow set theory posts matching user mathoverflow https://mathoverflow.net/questions/508614/how-small-can-a-set-x-subset-2-omega-be-if-it-is-able-to-distinguish-any-ult set theory - How small can a set $X \subset 2^\omega$ be if it is able to distinguish any... Let's take an $X \subset 2^\omega$ such that for any two distinct ultrafilters on $\omega$ there is a set $A \in X$ such that $A$ is in one ultrafilter but not... set theory it is small omega able https://mathoverflow.net/questions/tagged/set-theory?tab=newest&pagesize=50 Newest 'set-theory' Questions - MathOverflow set theory newest questions mathoverflow https://mathoverflow.net/questions/tagged/set-theory?tab=Active Recently Active 'set-theory' Questions - MathOverflow recently active set theory questions mathoverflow Sponsored https://www.kupid.ai/ Experience the Future of AI Chat with KupidAI https://mathoverflow.net/questions/tagged/set-theory?tab=Week Most active 'set-theory' questions - MathOverflow most active set theory questions mathoverflow https://mathoverflow.net/questions/510705/is-jensen-hierarchy-j-alpha-closed-under-collapsing-short-well-orders set theory - Is Jensen hierarchy $J_\alpha$ closed under collapsing short well-orders? -... set theory jensen hierarchy alpha closed https://mathoverflow.net/questions/tagged/set-theory?tab=newest&page=398&pagesize=15 Newest 'set-theory' Questions - Page 398 - MathOverflow set theory newest questions mathoverflow https://philosophy.stackexchange.com/questions/tagged/set-theory Newest 'set-theory' Questions - Philosophy Stack Exchange set theory stack exchange newest questions philosophy https://mathoverflow.net/questions/510361/filters-on-mathbbn-and-fast-functions set theory - Filters on $\mathbb{N}$ and fast functions - MathOverflow For a function $f : \omega \to \omega$, let us say a function $g : \omega \to \omega$ is $f$-fast growing if eventually $g(n+1)/g(n) \geq f(n)$. For natural... set theory filters fast functions mathoverflow https://mathoverflow.net/questions/tagged/set-theory?tab=newest&pagesize=30 Newest 'set-theory' Questions - MathOverflow set theory newest questions mathoverflow https://mathoverflow.net/questions/510100/omega-as-a-power set theory - $\omega$ as a power - MathOverflow Background. A set $X$ is Dedekind-finite, or D-finite, if every injection $\iota:X\to X$ is surjective. In ${\sf ZF}$, if $X$ is a D-finite set, its powerset... set theory omega power mathoverflow Sponsored https://www.blackedraw.com/ BLACKED RAW: Unfiltered Encounters with Powerful Men in 4K https://mathoverflow.net/questions/tagged/set-theory?tab=Frequent Frequent 'set-theory' Questions - MathOverflow set theory frequent questions mathoverflow https://mathoverflow.net/questions/21409/the-delta-system-lemma-outside-set-theory soft question - the delta system lemma outside set theory - MathOverflow The lemma: Any uncountable set $S$ of finite sets has an uncountable subset $\Delta \subseteq S$ and an $x$ such that $\forall a,b \in \Delta$, if $a \neq b$... the delta set theory soft question system https://mathoverflow.net/questions/tagged/set-theory?tab=newest&page=5&pagesize=15 Newest 'set-theory' Questions - Page 5 - MathOverflow set theory page 5 newest questions mathoverflow https://mathoverflow.net/questions/21409/the-delta-system-lemma-outside-set-theory?noredirect=1 soft question - the delta system lemma outside set theory - MathOverflow The lemma: Any uncountable set $S$ of finite sets has an uncountable subset $\Delta \subseteq S$ and an $x$ such that $\forall a,b \in \Delta$, if $a \neq b$... the delta set theory soft question system https://mathoverflow.net/questions/510051/proper-forcing-notions-which-preserve-some-but-not-all-meager-sets set theory - Proper forcing notions which preserve some, but not all meager sets - MathOverflow Given a nonmeager set $A \subseteq \omega^\omega$ and a forcing notion $\mathbb P$ say that $\mathbb P$ preserves $A$ nonmeager if $\Vdash_\mathbb P$ "$A$ is... set theory proper forcing notions preserve Sponsored https://www.comixharem.com/ Comix Harem https://mathoverflow.net/questions/504710/why-zermelo-postulated-the-existence-of-a-set-with-no-finite-limit-to-the-ranks set theory - Why Zermelo postulated the existence of a set with no finite limit to the ranks of its... The original Zermelo set theory explicitly allowed for urelements. What was the reason that led Zermelo to formulate the Axiom of Infinity in terms of the... set theory existence finite limit ranks https://mathoverflow.net/questions/tagged/set-theory?tab=Bounties Bountied 'set-theory' questions - MathOverflow set theory bountied questions mathoverflow https://mathoverflow.net/questions/510040/how-large-is-the-smallest-ordinal-gamma-such-that-every-ittm-countable-limit set theory - How large is the smallest ordinal $\gamma$ such that every ITTM-countable-limit... It is known that every ITTM-recognizable real number $x$ (i.e., $x \subseteq \omega$) is an element of $L_\sigma$, where $\sigma$ is the smallest ordinal such... set theory large smallest gamma every https://mathoverflow.net/questions/tagged/set-theory?tab=newest&page=3&pagesize=15 Newest 'set-theory' Questions - Page 3 - MathOverflow set theory page 3 newest questions mathoverflow https://mathoverflow.net/questions/tagged/set-theory?tab=Month Most active 'set-theory' questions - MathOverflow most active set theory questions mathoverflow https://math.stackexchange.com/questions/5134751/the-size-of-ls-cardinals set theory - the size of L's cardinals - Mathematics Stack Exchange Gödel's Constructible Universe L is an interesting model of ZF, since it showed the consistency of GCH and AC with ZF's axioms. However, that isn't important... set theory stack exchange size cardinals mathematics https://mathoverflow.net/questions/tagged/set-theory?tab=Newest Newest 'set-theory' Questions - MathOverflow set theory newest questions mathoverflow https://mathoverflow.net/questions/tagged/set-theory?tab=Trending Trending 'set-theory' questions - MathOverflow set theory trending questions mathoverflow https://mathoverflow.net/tags/set-theory/topusers 'set-theory' Top Users - MathOverflow set theory top users mathoverflow https://mathoverflow.net/questions/510151/what-are-some-advantages-of-set-theory-compared-to-type-theory-for-mathematical What are some advantages of set theory compared to type theory for mathematical research... What are some of the "advantages", as it were, of set theory compared to type theory when it comes to mathematical research (whether or not the topic has to do... set theory advantages compared type mathematical https://mathoverflow.net/questions/tagged/set-theory?tab=Unanswered Unanswered 'set-theory' Questions - MathOverflow set theory unanswered questions mathoverflow https://mathoverflow.net/questions/tagged/set-theory?tab=newest&page=4&pagesize=15 Newest 'set-theory' Questions - Page 4 - MathOverflow set theory page 4 newest questions mathoverflow https://mathoverflow.net/questions/509991/does-mathsfizf-mathrmrep-prove-that-l-omega-1-mathrmck-is-a set theory - Does $\mathsf{IZF}_{\mathrm{Rep}}$ prove that $L_{\omega_1^{\mathrm{CK}}}$ is a model... Let $\def\IZF{\mathsf{IZF}_{\mathrm{Rep}}}\IZF$ be intuitionistic Zermelo-Fraenkel set theory with the replacement scheme. (See this SEP article for a... set theory rep prove omega ck https://mathoverflow.net/questions/tagged/set-theory?tab=newest&page=2&pagesize=15 Newest 'set-theory' Questions - Page 2 - MathOverflow set theory page 2 newest questions mathoverflow https://math.stackexchange.com/questions/tagged/set-theory Newest 'set-theory' Questions - Mathematics Stack Exchange set theory stack exchange newest questions mathematics https://mathoverflow.net/questions/330710/whats-the-minimal-weight-of-a-maximal-space set theory - What's the minimal weight of a maximal space? - MathOverflow A non-empty topological space without isolated points is called maximal if every finer topology on that space has at least an isolated point. The existence of... set theory minimal weight maximal space https://mathoverflow.net/questions/tagged/set-theory?tab=Votes Highest scored 'set-theory' questions - MathOverflow set theory highest scored questions mathoverflow https://mathoverflow.net/tags/set-theory/synonyms 'set-theory' Tag Synonyms - MathOverflow set theory tag synonyms mathoverflow https://mathoverflow.net/questions/508707/existence-of-limit-intersection-in-an-omega-1-chain-of-almost-decreasing-subs set theory - Existence of limit intersection in an $\omega_1$-chain of almost decreasing subsets of... set theory in an existence limit intersection https://mathoverflow.net/questions/tagged/set-theory?tab=newest&pagesize=15 Newest 'set-theory' Questions - MathOverflow set theory newest questions mathoverflow https://mathoverflow.net/questions/tagged/descriptive-set-theory Newest 'descriptive-set-theory' Questions - MathOverflow set theory newest descriptive questions mathoverflow https://mathoverflow.net/questions/508654/a-weak-lozenge-principle set theory - A weak $\lozenge$ principle - MathOverflow (This is probably unrelated to Devlin-Shelah's weak diamond principle $\Phi$, but I didn't know what else to call it.) Say a sequence $\vec{A} = \langle... set theory weak lozenge principle mathoverflow https://mathoverflow.net/questions/510629/asymptotic-behaviour-of-difference-set-of-smooth-numbers nt.number theory - Asymptotic behaviour of difference set of smooth numbers - MathOverflow As usual, a $k$ smooth number is an integer that has no prime factor exceeding $k$. For each fixed constant $k$, let $A$ be the set of $k$ smooth numbers. The... number theory nt behaviour difference set https://mathoverflow.net/questions/508322/is-there-any-known-application-of-abstract-tangle-theory-in-logic-or-set-theory lo.logic - Is there any known application of abstract tangle theory in logic or set theory? -... In the last few years, graph theorists have taken Seymour/Robertson's notion of a tangle and generalized it to an abstract version based on the definition of a... lo known application abstract tangle