While traveling downtown today, I came across a sign near a local church, with a quotation of Saint-Exupéry:

### Archives

### Recent blog posts

- Partitioning the club guessing January 22, 2014
- Walk on countable ordinals: the characteristics December 1, 2013
- Polychromatic colorings November 26, 2013
- Universal binary sequences November 14, 2013
- Syndetic colorings with applications to S and L October 26, 2013
- Open coloring and the cardinal invariant $\mathfrak b$ October 8, 2013
- Gabriel Belachsan (14/5/1976 – 20/8/2013) August 20, 2013
- PFA and the tree property at $\aleph_2$ June 9, 2013

### Keywords

Forcing Shelah's Strong Hypothesis Erdos-Hajnal graphs Whitehead Problem P-Ideal Dichotomy Diamond Prevalent singular cardinals Absoluteness Uniformization Cardinal Invariants Forcing Axioms Successor of Regular Cardinal PFA(S)[S] Almost-disjoint famiy reflection principles Cohen real Rado's conjecture square free Boolean algebra Non-saturation projective Boolean algebra Poset Club Guessing Hedetniemi's conjecture Martin's Axiom Prikry-type forcing Axiom R Successor of Singular Cardinal S-Space Partition Relations b-scale Rock n' Roll Foundations Sakurai's Bell inequality diamond star Erdos Cardinal polarized partition relation Kurepa Hypothesis Large Cardinals L-space Hereditarily Lindelöf space stationary hitting Ostaszewski square Mandelbrot set Small forcing Generalized Clubs Souslin Tree Almost countably chromatic Aronszajn tree Singular Density Chromatic number approachability ideal weak diamond Constructible Universe tensor product graph Rainbow sets Universal Sequences sap incompactness Dushnik-Miller weak square Square-Brackets Partition Relations OCA Singular cardinals combinatorics Singular Cofinality middle diamond stationary reflection Minimal Walks Knaster Cardinal function very good scale PFA Antichain### Ongoing seminar

- Luzin sets and generalizations
- Nonuniversal colorings in ZFC
- Large Sets
- Infinite-dimensional Jonsson algebras
- Strong colorings without nontrivial polychromatic sets
- Infinite-dimensional polychromatic colorings
- Polychromatic colorings of the first uncountable cardinal
- From colorings to topology
- From topology to colorings
- Anti-Ramsey colorings of the rational numbers, part 2

I guess my spirit is pretty ruined then.

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