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Sakurai's Bell inequality b-scale Ineffable cardinal Souslin Tree full tree Shelah's Strong Hypothesis projective Boolean algebra Nonspecial tree xbox Ramsey theory over partitions Lipschitz reduction Cohen real Prevalent singular cardinals square Diamond for trees ZFC construction weak diamond Weakly compact cardinal Poset square principles coloring number Subtle cardinal Iterated forcing Chromatic number Generalized Clubs Antichain Diamond-sharp nonmeager set Hedetniemi's conjecture Universal Sequences Whitehead Problem S-Space Analytic sets Subadditive Amenable C-sequence Ostaszewski square tensor product graph Successor of Regular Cardinal Uniformly coherent Coherent tree Hereditarily Lindelöf space Partition Relations regressive Souslin tree Erdos-Hajnal graphs Constructible Universe Commutative cancellative semigroups Strongly Luzin set Sierpinski's onto mapping principle Cardinal function higher Baire space Fodor-type reflection Precaliber Foundations OCA weak Kurepa tree reflection principles Knaster Almost-disjoint family unbounded function ccc Slim tree Reduced Power Subnormal ideal Reflecting stationary set SNR Mandelbrot set 54G20 GMA Forcing Singular Density sap specializable Souslin tree Club Guessing Dowker space approachability ideal Rainbow sets C-sequence Successor of Singular Cardinal free Boolean algebra club_AD Small forcing Fast club Generalized descriptive set theory HOD Almost Souslin super-Souslin tree Forcing Axioms Aronszajn tree free Souslin tree Dushnik-Miller stick Axiom R Rado's conjecture Uniformization PFA Open Access Almost countably chromatic diamond star Greatly Mahlo Sigma-Prikry Ascent Path Filter reflection Kurepa Hypothesis weak square countably metacompact stationary hitting Jonsson cardinal Large Cardinals Chang's conjecture incompactness AIM forcing L-space Subtle tree property Uniformly homogeneous Distributive tree Martin's Axiom P-Ideal Dichotomy Fat stationary set Vanishing levels middle diamond O-space Local Club Condensation. Selective Ultrafilter Non-saturation Was Ulam right Hindman's Theorem Ulam matrix PFA(S)[S] Absoluteness Parameterized proxy principle polarized partition relation Erdos Cardinal stationary reflection Minimal Walks Postprocessing function transformations Rock n' Roll Microscopic Approach Closed coloring Singular cofinality Square-Brackets Partition Relations strongly bounded groups Singular cardinals combinatorics Well-behaved magma positive partition relation Strong coloring Cardinal Invariants Luzin set very good scale indecomposable ultrafilter Knaster and friends Prikry-type forcing Diamond
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