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stationary reflection Rado's conjecture strongly bounded groups L-space S-Space Successor of Regular Cardinal Prikry-type forcing free Souslin tree Fat stationary set coloring number Sigma-Prikry Partition relations for trees Reflecting stationary set Interval topology on trees Square-Brackets Partition Relations Antichain Ineffable cardinal Almost Souslin Subadditive Erdos-Hajnal graphs countably metacompact tensor product graph Successor of Singular Cardinal higher Baire space Open Access Strong coloring diamond star Postprocessing function Singular cardinals combinatorics Selective Ultrafilter super-Souslin tree Microscopic Approach SNR stationary hitting Subnormal ideal PFA Diamond for trees middle diamond Almost countably chromatic positive partition relation weak square Singular Density Martin's Axiom Strongly Luzin set Lipschitz reduction Small forcing Fodor-type reflection ccc Ostaszewski square specializable Souslin tree Diamond Precaliber Mandelbrot set Knaster AIM forcing Prevalent singular cardinals Well-behaved magma Forcing free Boolean algebra P-Ideal Dichotomy unbounded function approachability ideal Singular cofinality reflection principles Entangled linear order Iterated forcing Souslin Tree Ramsey theory over partitions Reduced Power Constructible Universe Subtle tree property Coherent tree incompactness Countryman line Amenable C-sequence Parameterized proxy principle Chang's conjecture Closed coloring Sierpinski's onto mapping principle O-space C-sequence 54G20 Ascending path Universal Sequences club_AD Intersection model Was Ulam right? Uniformly homogeneous Diamond-sharp Axiom R Commutative cancellative semigroups Greatly Mahlo weak Kurepa tree OCA Hereditarily Lindelöf space Analytic sets Minimal Walks full tree Forcing with side conditions Cohen real Nonspecial tree square principles regressive Souslin tree very good scale GMA ZFC construction Strongly compact cardinal b-scale Fast club Foundations nonmeager set Large Cardinals Forcing Axioms Vanishing levels Slim tree Generalized Clubs Ascent Path Absoluteness Ulam matrix Hindman's Theorem Almost-disjoint family Dushnik-Miller weak diamond polarized partition relation xbox square Sakurai's Bell inequality Subtle cardinal sap Uniformization HOD Chromatic number Rock n' Roll Whitehead Problem Filter reflection perfectly normal Knaster and friends Aronszajn tree Jonsson cardinal Respecting tree Kurepa Hypothesis Cardinal Invariants Luzin set Erdos Cardinal stick Commutative projection system indecomposable filter Local Club Condensation. Hedetniemi's conjecture Rainbow sets Cardinal function PFA(S)[S] transformations Generalized descriptive set theory Partition Relations Non-saturation projective Boolean algebra Shelah's Strong Hypothesis Weakly compact cardinal Club Guessing Monotonically far Distributive tree Dowker space Uniformly coherent Poset
Tag Archives: Mandelbrot set
A natural Mandelbrot set
Chris Hadfield is a Canadian astronaut, with a very high-profile twitter account. He posts there beautiful photos everyday, and I (plus half a million followers) enjoy it very much. Today, Chris posted the following picture: and I find it quite … Continue reading
