Archives
Keywords
stationary hitting Mandelbrot set tensor product graph Monotonically far Shelah's Strong Hypothesis 54G20 Luzin set square Was Ulam right? ccc Souslin Tree countably metacompact Kurepa Hypothesis Diamond club_AD free Souslin tree Knaster and friends Forcing Erdos Cardinal Hedetniemi's conjecture ZFC construction Almost countably chromatic Nonspecial tree indecomposable filter Uniformly coherent Universal Sequences Small forcing Precaliber OCA PFA Generalized Clubs very good scale transformations Minimal Walks specializable Souslin tree Forcing Axioms Postprocessing function Sierpinski's onto mapping principle Fast club Poset weak Kurepa tree Subtle tree property perfectly normal square principles Rado's conjecture Intersection model Closed coloring xbox Analytic sets middle diamond Diamond-sharp reflection principles Cardinal Invariants Reduced Power strongly bounded groups SNR diamond star Entangled linear order Antichain S-Space Successor of Singular Cardinal Coherent tree Local Club Condensation. Ramsey theory over partitions stationary reflection Reflecting stationary set L-space approachability ideal Open Access Prikry-type forcing Dushnik-Miller stick Partition Relations Constructible Universe Ulam matrix unbounded function Singular Density Greatly Mahlo Parameterized proxy principle weak diamond b-scale Ascent Path positive partition relation Countryman line Axiom R Iterated forcing Respecting tree Dowker space Erdos-Hajnal graphs Strong coloring polarized partition relation Generalized descriptive set theory Distributive tree Prevalent singular cardinals Uniformly homogeneous Martin's Axiom Almost Souslin Chromatic number Square-Brackets Partition Relations Ascending path higher Baire space Subtle cardinal Amenable C-sequence Large Cardinals P-Ideal Dichotomy Ineffable cardinal incompactness Successor of Regular Cardinal Singular cardinals combinatorics Absoluteness coloring number Subadditive Cohen real weak square Selective Ultrafilter Rock n' Roll C-sequence Singular cofinality sap Strongly Luzin set Well-behaved magma regressive Souslin tree AIM forcing Foundations free Boolean algebra Rainbow sets Fodor-type reflection Whitehead Problem Aronszajn tree Fat stationary set Knaster Interval topology on trees Subnormal ideal HOD full tree Slim tree projective Boolean algebra Jonsson cardinal Club Guessing GMA Chang's conjecture super-Souslin tree Sakurai's Bell inequality nonmeager set Almost-disjoint family Hereditarily Lindelöf space Commutative projection system Sigma-Prikry Cardinal function Diamond for trees Lipschitz reduction Commutative cancellative semigroups Uniformization O-space Filter reflection Vanishing levels Weakly compact cardinal Forcing with side conditions Hindman's Theorem Microscopic Approach PFA(S)[S] Ostaszewski square Non-saturation Strongly compact cardinal
Category Archives: Notes
Shelah’s solution to Whitehead’s problem
Whitehead problem notes in hebrew : Table of contents Chapter 0 Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6 Chapter 7 Chapter 8 Chapter 9 Chapter 10 Chapter 11 Chapter 12 References
Infinite Combinatorial Topology
Back in 2005, as a master student, I attended a course by Boaz Tsaban, entitled “Infinite Combinatorial Topology”. A friend and I decided to produce lecture notes, but in a somewhat loose sense, that is: we sometimes omit material given … Continue reading
Posted in Notes
Tagged b-scale, Cardinal function, Cardinal Invariants, Hereditarily Lindelöf space
8 Comments